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from collections import OrderedDict
from agate import utils
def aggregate(self, aggregations):
"""
Apply one or more :class:`.Aggregation` instances to this table.
:param aggregations:
A single :class:`.Aggregation` instance or a sequence of tuples in the
format :code:`(name, aggregation)`, where each :code:`aggregation` is
an instance of :class:`.Aggregation`.
:returns:
If the input was a single :class:`Aggregation` then a single result
will be returned. If it was a sequence then an :class:`.OrderedDict` of
results will be returned.
"""
if utils.issequence(aggregations):
results = OrderedDict()
for name, agg in aggregations:
agg.validate(self)
for name, agg in aggregations:
results[name] = agg.run(self)
return results
aggregations.validate(self)
return aggregations.run(self)
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