File: representer.py

package info (click to toggle)
ruamel.yaml 0.15.89-3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 2,508 kB
  • sloc: python: 10,725; ansic: 7,392; makefile: 11
file content (1280 lines) | stat: -rw-r--r-- 48,659 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
# coding: utf-8

from __future__ import print_function, absolute_import, division


from ruamel.yaml.error import *  # NOQA
from ruamel.yaml.nodes import *  # NOQA
from ruamel.yaml.compat import text_type, binary_type, to_unicode, PY2, PY3, ordereddict
from ruamel.yaml.compat import nprint, nprintf  # NOQA
from ruamel.yaml.scalarstring import (
    LiteralScalarString,
    FoldedScalarString,
    SingleQuotedScalarString,
    DoubleQuotedScalarString,
    PlainScalarString,
)
from ruamel.yaml.scalarint import ScalarInt, BinaryInt, OctalInt, HexInt, HexCapsInt
from ruamel.yaml.scalarfloat import ScalarFloat
from ruamel.yaml.scalarbool import ScalarBoolean
from ruamel.yaml.timestamp import TimeStamp

import datetime
import sys
import types

if PY3:
    import copyreg
    import base64
else:
    import copy_reg as copyreg  # type: ignore

if False:  # MYPY
    from typing import Dict, List, Any, Union, Text, Optional  # NOQA

# fmt: off
__all__ = ['BaseRepresenter', 'SafeRepresenter', 'Representer',
           'RepresenterError', 'RoundTripRepresenter']
# fmt: on


class RepresenterError(YAMLError):
    pass


if PY2:

    def get_classobj_bases(cls):
        # type: (Any) -> Any
        bases = [cls]
        for base in cls.__bases__:
            bases.extend(get_classobj_bases(base))
        return bases


class BaseRepresenter(object):

    yaml_representers = {}  # type: Dict[Any, Any]
    yaml_multi_representers = {}  # type: Dict[Any, Any]

    def __init__(self, default_style=None, default_flow_style=None, dumper=None):
        # type: (Any, Any, Any, Any) -> None
        self.dumper = dumper
        if self.dumper is not None:
            self.dumper._representer = self
        self.default_style = default_style
        self.default_flow_style = default_flow_style
        self.represented_objects = {}  # type: Dict[Any, Any]
        self.object_keeper = []  # type: List[Any]
        self.alias_key = None  # type: Optional[int]
        self.sort_base_mapping_type_on_output = True

    @property
    def serializer(self):
        # type: () -> Any
        try:
            if hasattr(self.dumper, 'typ'):
                return self.dumper.serializer
            return self.dumper._serializer
        except AttributeError:
            return self  # cyaml

    def represent(self, data):
        # type: (Any) -> None
        node = self.represent_data(data)
        self.serializer.serialize(node)
        self.represented_objects = {}  # type: Dict[Any, Any]
        self.object_keeper = []  # type: List[Any]
        self.alias_key = None

    def represent_data(self, data):
        # type: (Any) -> Any
        if self.ignore_aliases(data):
            self.alias_key = None
        else:
            self.alias_key = id(data)
        if self.alias_key is not None:
            if self.alias_key in self.represented_objects:
                node = self.represented_objects[self.alias_key]
                # if node is None:
                #     raise RepresenterError(
                #          "recursive objects are not allowed: %r" % data)
                return node
            # self.represented_objects[alias_key] = None
            self.object_keeper.append(data)
        data_types = type(data).__mro__
        if PY2:
            # if type(data) is types.InstanceType:
            if isinstance(data, types.InstanceType):
                data_types = get_classobj_bases(data.__class__) + list(data_types)
        if data_types[0] in self.yaml_representers:
            node = self.yaml_representers[data_types[0]](self, data)
        else:
            for data_type in data_types:
                if data_type in self.yaml_multi_representers:
                    node = self.yaml_multi_representers[data_type](self, data)
                    break
            else:
                if None in self.yaml_multi_representers:
                    node = self.yaml_multi_representers[None](self, data)
                elif None in self.yaml_representers:
                    node = self.yaml_representers[None](self, data)
                else:
                    node = ScalarNode(None, text_type(data))
        # if alias_key is not None:
        #     self.represented_objects[alias_key] = node
        return node

    def represent_key(self, data):
        # type: (Any) -> Any
        """
        David Fraser: Extract a method to represent keys in mappings, so that
        a subclass can choose not to quote them (for example)
        used in represent_mapping
        https://bitbucket.org/davidfraser/pyyaml/commits/d81df6eb95f20cac4a79eed95ae553b5c6f77b8c
        """
        return self.represent_data(data)

    @classmethod
    def add_representer(cls, data_type, representer):
        # type: (Any, Any) -> None
        if 'yaml_representers' not in cls.__dict__:
            cls.yaml_representers = cls.yaml_representers.copy()
        cls.yaml_representers[data_type] = representer

    @classmethod
    def add_multi_representer(cls, data_type, representer):
        # type: (Any, Any) -> None
        if 'yaml_multi_representers' not in cls.__dict__:
            cls.yaml_multi_representers = cls.yaml_multi_representers.copy()
        cls.yaml_multi_representers[data_type] = representer

    def represent_scalar(self, tag, value, style=None, anchor=None):
        # type: (Any, Any, Any, Any) -> Any
        if style is None:
            style = self.default_style
        comment = None
        if style and style[0] in '|>':
            comment = getattr(value, 'comment', None)
            if comment:
                comment = [None, [comment]]
        node = ScalarNode(tag, value, style=style, comment=comment, anchor=anchor)
        if self.alias_key is not None:
            self.represented_objects[self.alias_key] = node
        return node

    def represent_sequence(self, tag, sequence, flow_style=None):
        # type: (Any, Any, Any) -> Any
        value = []  # type: List[Any]
        node = SequenceNode(tag, value, flow_style=flow_style)
        if self.alias_key is not None:
            self.represented_objects[self.alias_key] = node
        best_style = True
        for item in sequence:
            node_item = self.represent_data(item)
            if not (isinstance(node_item, ScalarNode) and not node_item.style):
                best_style = False
            value.append(node_item)
        if flow_style is None:
            if self.default_flow_style is not None:
                node.flow_style = self.default_flow_style
            else:
                node.flow_style = best_style
        return node

    def represent_omap(self, tag, omap, flow_style=None):
        # type: (Any, Any, Any) -> Any
        value = []  # type: List[Any]
        node = SequenceNode(tag, value, flow_style=flow_style)
        if self.alias_key is not None:
            self.represented_objects[self.alias_key] = node
        best_style = True
        for item_key in omap:
            item_val = omap[item_key]
            node_item = self.represent_data({item_key: item_val})
            # if not (isinstance(node_item, ScalarNode) \
            #    and not node_item.style):
            #     best_style = False
            value.append(node_item)
        if flow_style is None:
            if self.default_flow_style is not None:
                node.flow_style = self.default_flow_style
            else:
                node.flow_style = best_style
        return node

    def represent_mapping(self, tag, mapping, flow_style=None):
        # type: (Any, Any, Any) -> Any
        value = []  # type: List[Any]
        node = MappingNode(tag, value, flow_style=flow_style)
        if self.alias_key is not None:
            self.represented_objects[self.alias_key] = node
        best_style = True
        if hasattr(mapping, 'items'):
            mapping = list(mapping.items())
            if self.sort_base_mapping_type_on_output:
                try:
                    mapping = sorted(mapping)
                except TypeError:
                    pass
        for item_key, item_value in mapping:
            node_key = self.represent_key(item_key)
            node_value = self.represent_data(item_value)
            if not (isinstance(node_key, ScalarNode) and not node_key.style):
                best_style = False
            if not (isinstance(node_value, ScalarNode) and not node_value.style):
                best_style = False
            value.append((node_key, node_value))
        if flow_style is None:
            if self.default_flow_style is not None:
                node.flow_style = self.default_flow_style
            else:
                node.flow_style = best_style
        return node

    def ignore_aliases(self, data):
        # type: (Any) -> bool
        return False


class SafeRepresenter(BaseRepresenter):
    def ignore_aliases(self, data):
        # type: (Any) -> bool
        # https://docs.python.org/3/reference/expressions.html#parenthesized-forms :
        # "i.e. two occurrences of the empty tuple may or may not yield the same object"
        # so "data is ()" should not be used
        if data is None or (isinstance(data, tuple) and data == ()):
            return True
        if isinstance(data, (binary_type, text_type, bool, int, float)):
            return True
        return False

    def represent_none(self, data):
        # type: (Any) -> Any
        return self.represent_scalar(u'tag:yaml.org,2002:null', u'null')

    if PY3:

        def represent_str(self, data):
            # type: (Any) -> Any
            return self.represent_scalar(u'tag:yaml.org,2002:str', data)

        def represent_binary(self, data):
            # type: (Any) -> Any
            if hasattr(base64, 'encodebytes'):
                data = base64.encodebytes(data).decode('ascii')
            else:
                data = base64.encodestring(data).decode('ascii')
            return self.represent_scalar(u'tag:yaml.org,2002:binary', data, style='|')

    else:

        def represent_str(self, data):
            # type: (Any) -> Any
            tag = None
            style = None
            try:
                data = unicode(data, 'ascii')
                tag = u'tag:yaml.org,2002:str'
            except UnicodeDecodeError:
                try:
                    data = unicode(data, 'utf-8')
                    tag = u'tag:yaml.org,2002:str'
                except UnicodeDecodeError:
                    data = data.encode('base64')
                    tag = u'tag:yaml.org,2002:binary'
                    style = '|'
            return self.represent_scalar(tag, data, style=style)

        def represent_unicode(self, data):
            # type: (Any) -> Any
            return self.represent_scalar(u'tag:yaml.org,2002:str', data)

    def represent_bool(self, data, anchor=None):
        # type: (Any, Optional[Any]) -> Any
        try:
            value = self.dumper.boolean_representation[bool(data)]
        except AttributeError:
            if data:
                value = u'true'
            else:
                value = u'false'
        return self.represent_scalar(u'tag:yaml.org,2002:bool', value, anchor=anchor)

    def represent_int(self, data):
        # type: (Any) -> Any
        return self.represent_scalar(u'tag:yaml.org,2002:int', text_type(data))

    if PY2:

        def represent_long(self, data):
            # type: (Any) -> Any
            return self.represent_scalar(u'tag:yaml.org,2002:int', text_type(data))

    inf_value = 1e300
    while repr(inf_value) != repr(inf_value * inf_value):
        inf_value *= inf_value

    def represent_float(self, data):
        # type: (Any) -> Any
        if data != data or (data == 0.0 and data == 1.0):
            value = u'.nan'
        elif data == self.inf_value:
            value = u'.inf'
        elif data == -self.inf_value:
            value = u'-.inf'
        else:
            value = to_unicode(repr(data)).lower()
            if getattr(self.serializer, 'use_version', None) == (1, 1):
                if u'.' not in value and u'e' in value:
                    # Note that in some cases `repr(data)` represents a float number
                    # without the decimal parts.  For instance:
                    #   >>> repr(1e17)
                    #   '1e17'
                    # Unfortunately, this is not a valid float representation according
                    # to the definition of the `!!float` tag in YAML 1.1.  We fix
                    # this by adding '.0' before the 'e' symbol.
                    value = value.replace(u'e', u'.0e', 1)
        return self.represent_scalar(u'tag:yaml.org,2002:float', value)

    def represent_list(self, data):
        # type: (Any) -> Any
        # pairs = (len(data) > 0 and isinstance(data, list))
        # if pairs:
        #     for item in data:
        #         if not isinstance(item, tuple) or len(item) != 2:
        #             pairs = False
        #             break
        # if not pairs:
        return self.represent_sequence(u'tag:yaml.org,2002:seq', data)

    # value = []
    # for item_key, item_value in data:
    #     value.append(self.represent_mapping(u'tag:yaml.org,2002:map',
    #         [(item_key, item_value)]))
    # return SequenceNode(u'tag:yaml.org,2002:pairs', value)

    def represent_dict(self, data):
        # type: (Any) -> Any
        return self.represent_mapping(u'tag:yaml.org,2002:map', data)

    def represent_ordereddict(self, data):
        # type: (Any) -> Any
        return self.represent_omap(u'tag:yaml.org,2002:omap', data)

    def represent_set(self, data):
        # type: (Any) -> Any
        value = {}  # type: Dict[Any, None]
        for key in data:
            value[key] = None
        return self.represent_mapping(u'tag:yaml.org,2002:set', value)

    def represent_date(self, data):
        # type: (Any) -> Any
        value = to_unicode(data.isoformat())
        return self.represent_scalar(u'tag:yaml.org,2002:timestamp', value)

    def represent_datetime(self, data):
        # type: (Any) -> Any
        value = to_unicode(data.isoformat(' '))
        return self.represent_scalar(u'tag:yaml.org,2002:timestamp', value)

    def represent_yaml_object(self, tag, data, cls, flow_style=None):
        # type: (Any, Any, Any, Any) -> Any
        if hasattr(data, '__getstate__'):
            state = data.__getstate__()
        else:
            state = data.__dict__.copy()
        return self.represent_mapping(tag, state, flow_style=flow_style)

    def represent_undefined(self, data):
        # type: (Any) -> None
        raise RepresenterError('cannot represent an object: %s' % (data,))


SafeRepresenter.add_representer(type(None), SafeRepresenter.represent_none)

SafeRepresenter.add_representer(str, SafeRepresenter.represent_str)

if PY2:
    SafeRepresenter.add_representer(unicode, SafeRepresenter.represent_unicode)
else:
    SafeRepresenter.add_representer(bytes, SafeRepresenter.represent_binary)

SafeRepresenter.add_representer(bool, SafeRepresenter.represent_bool)

SafeRepresenter.add_representer(int, SafeRepresenter.represent_int)

if PY2:
    SafeRepresenter.add_representer(long, SafeRepresenter.represent_long)

SafeRepresenter.add_representer(float, SafeRepresenter.represent_float)

SafeRepresenter.add_representer(list, SafeRepresenter.represent_list)

SafeRepresenter.add_representer(tuple, SafeRepresenter.represent_list)

SafeRepresenter.add_representer(dict, SafeRepresenter.represent_dict)

SafeRepresenter.add_representer(set, SafeRepresenter.represent_set)

SafeRepresenter.add_representer(ordereddict, SafeRepresenter.represent_ordereddict)

if sys.version_info >= (2, 7):
    import collections

    SafeRepresenter.add_representer(
        collections.OrderedDict, SafeRepresenter.represent_ordereddict
    )

SafeRepresenter.add_representer(datetime.date, SafeRepresenter.represent_date)

SafeRepresenter.add_representer(datetime.datetime, SafeRepresenter.represent_datetime)

SafeRepresenter.add_representer(None, SafeRepresenter.represent_undefined)


class Representer(SafeRepresenter):
    if PY2:

        def represent_str(self, data):
            # type: (Any) -> Any
            tag = None
            style = None
            try:
                data = unicode(data, 'ascii')
                tag = u'tag:yaml.org,2002:str'
            except UnicodeDecodeError:
                try:
                    data = unicode(data, 'utf-8')
                    tag = u'tag:yaml.org,2002:python/str'
                except UnicodeDecodeError:
                    data = data.encode('base64')
                    tag = u'tag:yaml.org,2002:binary'
                    style = '|'
            return self.represent_scalar(tag, data, style=style)

        def represent_unicode(self, data):
            # type: (Any) -> Any
            tag = None
            try:
                data.encode('ascii')
                tag = u'tag:yaml.org,2002:python/unicode'
            except UnicodeEncodeError:
                tag = u'tag:yaml.org,2002:str'
            return self.represent_scalar(tag, data)

        def represent_long(self, data):
            # type: (Any) -> Any
            tag = u'tag:yaml.org,2002:int'
            if int(data) is not data:
                tag = u'tag:yaml.org,2002:python/long'
            return self.represent_scalar(tag, to_unicode(data))

    def represent_complex(self, data):
        # type: (Any) -> Any
        if data.imag == 0.0:
            data = u'%r' % data.real
        elif data.real == 0.0:
            data = u'%rj' % data.imag
        elif data.imag > 0:
            data = u'%r+%rj' % (data.real, data.imag)
        else:
            data = u'%r%rj' % (data.real, data.imag)
        return self.represent_scalar(u'tag:yaml.org,2002:python/complex', data)

    def represent_tuple(self, data):
        # type: (Any) -> Any
        return self.represent_sequence(u'tag:yaml.org,2002:python/tuple', data)

    def represent_name(self, data):
        # type: (Any) -> Any
        try:
            name = u'%s.%s' % (data.__module__, data.__qualname__)
        except AttributeError:
            # probably PY2
            name = u'%s.%s' % (data.__module__, data.__name__)
        return self.represent_scalar(u'tag:yaml.org,2002:python/name:' + name, "")

    def represent_module(self, data):
        # type: (Any) -> Any
        return self.represent_scalar(u'tag:yaml.org,2002:python/module:' + data.__name__, "")

    if PY2:

        def represent_instance(self, data):
            # type: (Any) -> Any
            # For instances of classic classes, we use __getinitargs__ and
            # __getstate__ to serialize the data.

            # If data.__getinitargs__ exists, the object must be reconstructed
            # by calling cls(**args), where args is a tuple returned by
            # __getinitargs__. Otherwise, the cls.__init__ method should never
            # be called and the class instance is created by instantiating a
            # trivial class and assigning to the instance's __class__ variable.

            # If data.__getstate__ exists, it returns the state of the object.
            # Otherwise, the state of the object is data.__dict__.

            # We produce either a !!python/object or !!python/object/new node.
            # If data.__getinitargs__ does not exist and state is a dictionary,
            # we produce a !!python/object node . Otherwise we produce a
            # !!python/object/new node.

            cls = data.__class__
            class_name = u'%s.%s' % (cls.__module__, cls.__name__)
            args = None
            state = None
            if hasattr(data, '__getinitargs__'):
                args = list(data.__getinitargs__())
            if hasattr(data, '__getstate__'):
                state = data.__getstate__()
            else:
                state = data.__dict__
            if args is None and isinstance(state, dict):
                return self.represent_mapping(
                    u'tag:yaml.org,2002:python/object:' + class_name, state
                )
            if isinstance(state, dict) and not state:
                return self.represent_sequence(
                    u'tag:yaml.org,2002:python/object/new:' + class_name, args
                )
            value = {}
            if bool(args):
                value['args'] = args
            value['state'] = state  # type: ignore
            return self.represent_mapping(
                u'tag:yaml.org,2002:python/object/new:' + class_name, value
            )

    def represent_object(self, data):
        # type: (Any) -> Any
        # We use __reduce__ API to save the data. data.__reduce__ returns
        # a tuple of length 2-5:
        #   (function, args, state, listitems, dictitems)

        # For reconstructing, we calls function(*args), then set its state,
        # listitems, and dictitems if they are not None.

        # A special case is when function.__name__ == '__newobj__'. In this
        # case we create the object with args[0].__new__(*args).

        # Another special case is when __reduce__ returns a string - we don't
        # support it.

        # We produce a !!python/object, !!python/object/new or
        # !!python/object/apply node.

        cls = type(data)
        if cls in copyreg.dispatch_table:
            reduce = copyreg.dispatch_table[cls](data)
        elif hasattr(data, '__reduce_ex__'):
            reduce = data.__reduce_ex__(2)
        elif hasattr(data, '__reduce__'):
            reduce = data.__reduce__()
        else:
            raise RepresenterError('cannot represent object: %r' % (data,))
        reduce = (list(reduce) + [None] * 5)[:5]
        function, args, state, listitems, dictitems = reduce
        args = list(args)
        if state is None:
            state = {}
        if listitems is not None:
            listitems = list(listitems)
        if dictitems is not None:
            dictitems = dict(dictitems)
        if function.__name__ == '__newobj__':
            function = args[0]
            args = args[1:]
            tag = u'tag:yaml.org,2002:python/object/new:'
            newobj = True
        else:
            tag = u'tag:yaml.org,2002:python/object/apply:'
            newobj = False
        try:
            function_name = u'%s.%s' % (function.__module__, function.__qualname__)
        except AttributeError:
            # probably PY2
            function_name = u'%s.%s' % (function.__module__, function.__name__)
        if not args and not listitems and not dictitems and isinstance(state, dict) and newobj:
            return self.represent_mapping(
                u'tag:yaml.org,2002:python/object:' + function_name, state
            )
        if not listitems and not dictitems and isinstance(state, dict) and not state:
            return self.represent_sequence(tag + function_name, args)
        value = {}
        if args:
            value['args'] = args
        if state or not isinstance(state, dict):
            value['state'] = state
        if listitems:
            value['listitems'] = listitems
        if dictitems:
            value['dictitems'] = dictitems
        return self.represent_mapping(tag + function_name, value)


if PY2:
    Representer.add_representer(str, Representer.represent_str)

    Representer.add_representer(unicode, Representer.represent_unicode)

    Representer.add_representer(long, Representer.represent_long)

Representer.add_representer(complex, Representer.represent_complex)

Representer.add_representer(tuple, Representer.represent_tuple)

Representer.add_representer(type, Representer.represent_name)

if PY2:
    Representer.add_representer(types.ClassType, Representer.represent_name)

Representer.add_representer(types.FunctionType, Representer.represent_name)

Representer.add_representer(types.BuiltinFunctionType, Representer.represent_name)

Representer.add_representer(types.ModuleType, Representer.represent_module)

if PY2:
    Representer.add_multi_representer(types.InstanceType, Representer.represent_instance)

Representer.add_multi_representer(object, Representer.represent_object)

Representer.add_multi_representer(type, Representer.represent_name)

from ruamel.yaml.comments import (
    CommentedMap,
    CommentedOrderedMap,
    CommentedSeq,
    CommentedKeySeq,
    CommentedKeyMap,
    CommentedSet,
    comment_attrib,
    merge_attrib,
    TaggedScalar,
)  # NOQA


class RoundTripRepresenter(SafeRepresenter):
    # need to add type here and write out the .comment
    # in serializer and emitter

    def __init__(self, default_style=None, default_flow_style=None, dumper=None):
        # type: (Any, Any, Any) -> None
        if not hasattr(dumper, 'typ') and default_flow_style is None:
            default_flow_style = False
        SafeRepresenter.__init__(
            self,
            default_style=default_style,
            default_flow_style=default_flow_style,
            dumper=dumper,
        )

    def ignore_aliases(self, data):
        # type: (Any) -> bool
        try:
            if data.anchor is not None and data.anchor.value is not None:
                return False
        except AttributeError:
            pass
        return SafeRepresenter.ignore_aliases(self, data)

    def represent_none(self, data):
        # type: (Any) -> Any
        if len(self.represented_objects) == 0 and not self.serializer.use_explicit_start:
            # this will be open ended (although it is not yet)
            return self.represent_scalar(u'tag:yaml.org,2002:null', u'null')
        return self.represent_scalar(u'tag:yaml.org,2002:null', "")

    def represent_literal_scalarstring(self, data):
        # type: (Any) -> Any
        tag = None
        style = '|'
        anchor = data.yaml_anchor(any=True)
        if PY2 and not isinstance(data, unicode):
            data = unicode(data, 'ascii')
        tag = u'tag:yaml.org,2002:str'
        return self.represent_scalar(tag, data, style=style, anchor=anchor)

    represent_preserved_scalarstring = represent_literal_scalarstring

    def represent_folded_scalarstring(self, data):
        # type: (Any) -> Any
        tag = None
        style = '>'
        anchor = data.yaml_anchor(any=True)
        for fold_pos in reversed(getattr(data, 'fold_pos', [])):
            if (
                data[fold_pos] == ' '
                and (fold_pos > 0 and not data[fold_pos - 1].isspace())
                and (fold_pos < len(data) and not data[fold_pos + 1].isspace())
            ):
                data = data[:fold_pos] + '\a' + data[fold_pos:]
        if PY2 and not isinstance(data, unicode):
            data = unicode(data, 'ascii')
        tag = u'tag:yaml.org,2002:str'
        return self.represent_scalar(tag, data, style=style, anchor=anchor)

    def represent_single_quoted_scalarstring(self, data):
        # type: (Any) -> Any
        tag = None
        style = "'"
        anchor = data.yaml_anchor(any=True)
        if PY2 and not isinstance(data, unicode):
            data = unicode(data, 'ascii')
        tag = u'tag:yaml.org,2002:str'
        return self.represent_scalar(tag, data, style=style, anchor=anchor)

    def represent_double_quoted_scalarstring(self, data):
        # type: (Any) -> Any
        tag = None
        style = '"'
        anchor = data.yaml_anchor(any=True)
        if PY2 and not isinstance(data, unicode):
            data = unicode(data, 'ascii')
        tag = u'tag:yaml.org,2002:str'
        return self.represent_scalar(tag, data, style=style, anchor=anchor)

    def represent_plain_scalarstring(self, data):
        # type: (Any) -> Any
        tag = None
        style = ''
        anchor = data.yaml_anchor(any=True)
        if PY2 and not isinstance(data, unicode):
            data = unicode(data, 'ascii')
        tag = u'tag:yaml.org,2002:str'
        return self.represent_scalar(tag, data, style=style, anchor=anchor)

    def insert_underscore(self, prefix, s, underscore, anchor=None):
        # type: (Any, Any, Any, Any) -> Any
        if underscore is None:
            return self.represent_scalar(u'tag:yaml.org,2002:int', prefix + s, anchor=anchor)
        if underscore[0]:
            sl = list(s)
            pos = len(s) - underscore[0]
            while pos > 0:
                sl.insert(pos, '_')
                pos -= underscore[0]
            s = "".join(sl)
        if underscore[1]:
            s = '_' + s
        if underscore[2]:
            s += '_'
        return self.represent_scalar(u'tag:yaml.org,2002:int', prefix + s, anchor=anchor)

    def represent_scalar_int(self, data):
        # type: (Any) -> Any
        if data._width is not None:
            s = '{:0{}d}'.format(data, data._width)
        else:
            s = format(data, 'd')
        anchor = data.yaml_anchor(any=True)
        return self.insert_underscore("", s, data._underscore, anchor=anchor)

    def represent_binary_int(self, data):
        # type: (Any) -> Any
        if data._width is not None:
            # cannot use '{:#0{}b}', that strips the zeros
            s = '{:0{}b}'.format(data, data._width)
        else:
            s = format(data, 'b')
        anchor = data.yaml_anchor(any=True)
        return self.insert_underscore('0b', s, data._underscore, anchor=anchor)

    def represent_octal_int(self, data):
        # type: (Any) -> Any
        if data._width is not None:
            # cannot use '{:#0{}o}', that strips the zeros
            s = '{:0{}o}'.format(data, data._width)
        else:
            s = format(data, 'o')
        anchor = data.yaml_anchor(any=True)
        return self.insert_underscore('0o', s, data._underscore, anchor=anchor)

    def represent_hex_int(self, data):
        # type: (Any) -> Any
        if data._width is not None:
            # cannot use '{:#0{}x}', that strips the zeros
            s = '{:0{}x}'.format(data, data._width)
        else:
            s = format(data, 'x')
        anchor = data.yaml_anchor(any=True)
        return self.insert_underscore('0x', s, data._underscore, anchor=anchor)

    def represent_hex_caps_int(self, data):
        # type: (Any) -> Any
        if data._width is not None:
            # cannot use '{:#0{}X}', that strips the zeros
            s = '{:0{}X}'.format(data, data._width)
        else:
            s = format(data, 'X')
        anchor = data.yaml_anchor(any=True)
        return self.insert_underscore('0x', s, data._underscore, anchor=anchor)

    def represent_scalar_float(self, data):
        # type: (Any) -> Any
        """ this is way more complicated """
        value = None
        anchor = data.yaml_anchor(any=True)
        if data != data or (data == 0.0 and data == 1.0):
            value = u'.nan'
        elif data == self.inf_value:
            value = u'.inf'
        elif data == -self.inf_value:
            value = u'-.inf'
        if value:
            return self.represent_scalar(u'tag:yaml.org,2002:float', value, anchor=anchor)
        if data._exp is None and data._prec > 0 and data._prec == data._width - 1:
            # no exponent, but trailing dot
            value = u'{}{:d}.'.format(data._m_sign if data._m_sign else "", abs(int(data)))
        elif data._exp is None:
            # no exponent, "normal" dot
            prec = data._prec
            ms = data._m_sign if data._m_sign else ""
            # -1 for the dot
            value = u'{}{:0{}.{}f}'.format(
                ms, abs(data), data._width - len(ms), data._width - prec - 1
            )
            if prec == 0 or (prec == 1 and ms != ""):
                value = value.replace(u'0.', u'.')
            while len(value) < data._width:
                value += u'0'
        else:
            # exponent
            m, es = u'{:{}.{}e}'.format(
                # data, data._width, data._width - data._prec + (1 if data._m_sign else 0)
                data,
                data._width,
                data._width + (1 if data._m_sign else 0),
            ).split('e')
            w = data._width if data._prec > 0 else (data._width + 1)
            if data < 0:
                w += 1
            m = m[:w]
            e = int(es)
            m1, m2 = m.split('.')  # always second?
            while len(m1) + len(m2) < data._width - (1 if data._prec >= 0 else 0):
                m2 += u'0'
            if data._m_sign and data > 0:
                m1 = '+' + m1
            esgn = u'+' if data._e_sign else ""
            if data._prec < 0:  # mantissa without dot
                if m2 != u'0':
                    e -= len(m2)
                else:
                    m2 = ""
                while (len(m1) + len(m2) - (1 if data._m_sign else 0)) < data._width:
                    m2 += u'0'
                    e -= 1
                value = m1 + m2 + data._exp + u'{:{}0{}d}'.format(e, esgn, data._e_width)
            elif data._prec == 0:  # mantissa with trailing dot
                e -= len(m2)
                value = (
                    m1 + m2 + u'.' + data._exp + u'{:{}0{}d}'.format(e, esgn, data._e_width)
                )
            else:
                if data._m_lead0 > 0:
                    m2 = u'0' * (data._m_lead0 - 1) + m1 + m2
                    m1 = u'0'
                    m2 = m2[: -data._m_lead0]  # these should be zeros
                    e += data._m_lead0
                while len(m1) < data._prec:
                    m1 += m2[0]
                    m2 = m2[1:]
                    e -= 1
                value = (
                    m1 + u'.' + m2 + data._exp + u'{:{}0{}d}'.format(e, esgn, data._e_width)
                )

        if value is None:
            value = to_unicode(repr(data)).lower()
        return self.represent_scalar(u'tag:yaml.org,2002:float', value, anchor=anchor)

    def represent_sequence(self, tag, sequence, flow_style=None):
        # type: (Any, Any, Any) -> Any
        value = []  # type: List[Any]
        # if the flow_style is None, the flow style tacked on to the object
        # explicitly will be taken. If that is None as well the default flow
        # style rules
        try:
            flow_style = sequence.fa.flow_style(flow_style)
        except AttributeError:
            flow_style = flow_style
        try:
            anchor = sequence.yaml_anchor()
        except AttributeError:
            anchor = None
        node = SequenceNode(tag, value, flow_style=flow_style, anchor=anchor)
        if self.alias_key is not None:
            self.represented_objects[self.alias_key] = node
        best_style = True
        try:
            comment = getattr(sequence, comment_attrib)
            node.comment = comment.comment
            # reset any comment already printed information
            if node.comment and node.comment[1]:
                for ct in node.comment[1]:
                    ct.reset()
            item_comments = comment.items
            for v in item_comments.values():
                if v and v[1]:
                    for ct in v[1]:
                        ct.reset()
            item_comments = comment.items
            node.comment = comment.comment
            try:
                node.comment.append(comment.end)
            except AttributeError:
                pass
        except AttributeError:
            item_comments = {}
        for idx, item in enumerate(sequence):
            node_item = self.represent_data(item)
            self.merge_comments(node_item, item_comments.get(idx))
            if not (isinstance(node_item, ScalarNode) and not node_item.style):
                best_style = False
            value.append(node_item)
        if flow_style is None:
            if len(sequence) != 0 and self.default_flow_style is not None:
                node.flow_style = self.default_flow_style
            else:
                node.flow_style = best_style
        return node

    def merge_comments(self, node, comments):
        # type: (Any, Any) -> Any
        if comments is None:
            assert hasattr(node, 'comment')
            return node
        if getattr(node, 'comment', None) is not None:
            for idx, val in enumerate(comments):
                if idx >= len(node.comment):
                    continue
                nc = node.comment[idx]
                if nc is not None:
                    assert val is None or val == nc
                    comments[idx] = nc
        node.comment = comments
        return node

    def represent_key(self, data):
        # type: (Any) -> Any
        if isinstance(data, CommentedKeySeq):
            self.alias_key = None
            return self.represent_sequence(u'tag:yaml.org,2002:seq', data, flow_style=True)
        if isinstance(data, CommentedKeyMap):
            self.alias_key = None
            return self.represent_mapping(u'tag:yaml.org,2002:map', data, flow_style=True)
        return SafeRepresenter.represent_key(self, data)

    def represent_mapping(self, tag, mapping, flow_style=None):
        # type: (Any, Any, Any) -> Any
        value = []  # type: List[Any]
        try:
            flow_style = mapping.fa.flow_style(flow_style)
        except AttributeError:
            flow_style = flow_style
        try:
            anchor = mapping.yaml_anchor()
        except AttributeError:
            anchor = None
        node = MappingNode(tag, value, flow_style=flow_style, anchor=anchor)
        if self.alias_key is not None:
            self.represented_objects[self.alias_key] = node
        best_style = True
        # no sorting! !!
        try:
            comment = getattr(mapping, comment_attrib)
            node.comment = comment.comment
            if node.comment and node.comment[1]:
                for ct in node.comment[1]:
                    ct.reset()
            item_comments = comment.items
            for v in item_comments.values():
                if v and v[1]:
                    for ct in v[1]:
                        ct.reset()
            try:
                node.comment.append(comment.end)
            except AttributeError:
                pass
        except AttributeError:
            item_comments = {}
        merge_list = [m[1] for m in getattr(mapping, merge_attrib, [])]
        try:
            merge_pos = getattr(mapping, merge_attrib, [[0]])[0][0]
        except IndexError:
            merge_pos = 0
        item_count = 0
        if bool(merge_list):
            items = mapping.non_merged_items()
        else:
            items = mapping.items()
        for item_key, item_value in items:
            item_count += 1
            node_key = self.represent_key(item_key)
            node_value = self.represent_data(item_value)
            item_comment = item_comments.get(item_key)
            if item_comment:
                assert getattr(node_key, 'comment', None) is None
                node_key.comment = item_comment[:2]
                nvc = getattr(node_value, 'comment', None)
                if nvc is not None:  # end comment already there
                    nvc[0] = item_comment[2]
                    nvc[1] = item_comment[3]
                else:
                    node_value.comment = item_comment[2:]
            if not (isinstance(node_key, ScalarNode) and not node_key.style):
                best_style = False
            if not (isinstance(node_value, ScalarNode) and not node_value.style):
                best_style = False
            value.append((node_key, node_value))
        if flow_style is None:
            if ((item_count != 0) or bool(merge_list)) and self.default_flow_style is not None:
                node.flow_style = self.default_flow_style
            else:
                node.flow_style = best_style
        if bool(merge_list):
            # because of the call to represent_data here, the anchors
            # are marked as being used and thereby created
            if len(merge_list) == 1:
                arg = self.represent_data(merge_list[0])
            else:
                arg = self.represent_data(merge_list)
                arg.flow_style = True
            value.insert(merge_pos, (ScalarNode(u'tag:yaml.org,2002:merge', '<<'), arg))
        return node

    def represent_omap(self, tag, omap, flow_style=None):
        # type: (Any, Any, Any) -> Any
        value = []  # type: List[Any]
        try:
            flow_style = omap.fa.flow_style(flow_style)
        except AttributeError:
            flow_style = flow_style
        try:
            anchor = omap.yaml_anchor()
        except AttributeError:
            anchor = None
        node = SequenceNode(tag, value, flow_style=flow_style, anchor=anchor)
        if self.alias_key is not None:
            self.represented_objects[self.alias_key] = node
        best_style = True
        try:
            comment = getattr(omap, comment_attrib)
            node.comment = comment.comment
            if node.comment and node.comment[1]:
                for ct in node.comment[1]:
                    ct.reset()
            item_comments = comment.items
            for v in item_comments.values():
                if v and v[1]:
                    for ct in v[1]:
                        ct.reset()
            try:
                node.comment.append(comment.end)
            except AttributeError:
                pass
        except AttributeError:
            item_comments = {}
        for item_key in omap:
            item_val = omap[item_key]
            node_item = self.represent_data({item_key: item_val})
            # node_item.flow_style = False
            # node item has two scalars in value: node_key and node_value
            item_comment = item_comments.get(item_key)
            if item_comment:
                if item_comment[1]:
                    node_item.comment = [None, item_comment[1]]
                assert getattr(node_item.value[0][0], 'comment', None) is None
                node_item.value[0][0].comment = [item_comment[0], None]
                nvc = getattr(node_item.value[0][1], 'comment', None)
                if nvc is not None:  # end comment already there
                    nvc[0] = item_comment[2]
                    nvc[1] = item_comment[3]
                else:
                    node_item.value[0][1].comment = item_comment[2:]
            # if not (isinstance(node_item, ScalarNode) \
            #    and not node_item.style):
            #     best_style = False
            value.append(node_item)
        if flow_style is None:
            if self.default_flow_style is not None:
                node.flow_style = self.default_flow_style
            else:
                node.flow_style = best_style
        return node

    def represent_set(self, setting):
        # type: (Any) -> Any
        flow_style = False
        tag = u'tag:yaml.org,2002:set'
        # return self.represent_mapping(tag, value)
        value = []  # type: List[Any]
        flow_style = setting.fa.flow_style(flow_style)
        try:
            anchor = setting.yaml_anchor()
        except AttributeError:
            anchor = None
        node = MappingNode(tag, value, flow_style=flow_style, anchor=anchor)
        if self.alias_key is not None:
            self.represented_objects[self.alias_key] = node
        best_style = True
        # no sorting! !!
        try:
            comment = getattr(setting, comment_attrib)
            node.comment = comment.comment
            if node.comment and node.comment[1]:
                for ct in node.comment[1]:
                    ct.reset()
            item_comments = comment.items
            for v in item_comments.values():
                if v and v[1]:
                    for ct in v[1]:
                        ct.reset()
            try:
                node.comment.append(comment.end)
            except AttributeError:
                pass
        except AttributeError:
            item_comments = {}
        for item_key in setting.odict:
            node_key = self.represent_key(item_key)
            node_value = self.represent_data(None)
            item_comment = item_comments.get(item_key)
            if item_comment:
                assert getattr(node_key, 'comment', None) is None
                node_key.comment = item_comment[:2]
            node_key.style = node_value.style = '?'
            if not (isinstance(node_key, ScalarNode) and not node_key.style):
                best_style = False
            if not (isinstance(node_value, ScalarNode) and not node_value.style):
                best_style = False
            value.append((node_key, node_value))
        best_style = best_style
        return node

    def represent_dict(self, data):
        # type: (Any) -> Any
        """write out tag if saved on loading"""
        try:
            t = data.tag.value
        except AttributeError:
            t = None
        if t:
            if t.startswith('!!'):
                tag = 'tag:yaml.org,2002:' + t[2:]
            else:
                tag = t
        else:
            tag = u'tag:yaml.org,2002:map'
        return self.represent_mapping(tag, data)

    def represent_list(self, data):
        # type: (Any) -> Any
        try:
            t = data.tag.value
        except AttributeError:
            t = None
        if t:
            if t.startswith('!!'):
                tag = 'tag:yaml.org,2002:' + t[2:]
            else:
                tag = t
        else:
            tag = u'tag:yaml.org,2002:seq'
        return self.represent_sequence(tag, data)

    def represent_datetime(self, data):
        # type: (Any) -> Any
        inter = 'T' if data._yaml['t'] else ' '
        _yaml = data._yaml
        if _yaml['delta']:
            data += _yaml['delta']
            value = data.isoformat(inter)
        else:
            value = data.isoformat(inter)
        if _yaml['tz']:
            value += _yaml['tz']
        return self.represent_scalar(u'tag:yaml.org,2002:timestamp', to_unicode(value))

    def represent_tagged_scalar(self, data):
        # type: (Any) -> Any
        try:
            tag = data.tag.value
        except AttributeError:
            tag = None
        try:
            anchor = data.yaml_anchor()
        except AttributeError:
            anchor = None
        return self.represent_scalar(tag, data.value, style=data.style, anchor=anchor)

    def represent_scalar_bool(self, data):
        # type: (Any) -> Any
        try:
            anchor = data.yaml_anchor()
        except AttributeError:
            anchor = None
        return SafeRepresenter.represent_bool(self, data, anchor=anchor)


RoundTripRepresenter.add_representer(type(None), RoundTripRepresenter.represent_none)

RoundTripRepresenter.add_representer(
    LiteralScalarString, RoundTripRepresenter.represent_literal_scalarstring
)

RoundTripRepresenter.add_representer(
    FoldedScalarString, RoundTripRepresenter.represent_folded_scalarstring
)

RoundTripRepresenter.add_representer(
    SingleQuotedScalarString, RoundTripRepresenter.represent_single_quoted_scalarstring
)

RoundTripRepresenter.add_representer(
    DoubleQuotedScalarString, RoundTripRepresenter.represent_double_quoted_scalarstring
)

RoundTripRepresenter.add_representer(
    PlainScalarString, RoundTripRepresenter.represent_plain_scalarstring
)

RoundTripRepresenter.add_representer(ScalarInt, RoundTripRepresenter.represent_scalar_int)

RoundTripRepresenter.add_representer(BinaryInt, RoundTripRepresenter.represent_binary_int)

RoundTripRepresenter.add_representer(OctalInt, RoundTripRepresenter.represent_octal_int)

RoundTripRepresenter.add_representer(HexInt, RoundTripRepresenter.represent_hex_int)

RoundTripRepresenter.add_representer(HexCapsInt, RoundTripRepresenter.represent_hex_caps_int)

RoundTripRepresenter.add_representer(ScalarFloat, RoundTripRepresenter.represent_scalar_float)

RoundTripRepresenter.add_representer(ScalarBoolean, RoundTripRepresenter.represent_scalar_bool)

RoundTripRepresenter.add_representer(CommentedSeq, RoundTripRepresenter.represent_list)

RoundTripRepresenter.add_representer(CommentedMap, RoundTripRepresenter.represent_dict)

RoundTripRepresenter.add_representer(
    CommentedOrderedMap, RoundTripRepresenter.represent_ordereddict
)

if sys.version_info >= (2, 7):
    import collections

    RoundTripRepresenter.add_representer(
        collections.OrderedDict, RoundTripRepresenter.represent_ordereddict
    )

RoundTripRepresenter.add_representer(CommentedSet, RoundTripRepresenter.represent_set)

RoundTripRepresenter.add_representer(
    TaggedScalar, RoundTripRepresenter.represent_tagged_scalar
)

RoundTripRepresenter.add_representer(TimeStamp, RoundTripRepresenter.represent_datetime)