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# make sure we use cpp implementation of protobuf
import os
os.environ["PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION"] = "cpp"
# then import protobuf
from caffe2.proto import caffe2_pb2, metanet_pb2
import unittest
class TestCrossProtoCalls(unittest.TestCase):
def testSimple(self):
net = caffe2_pb2.NetDef()
meta = metanet_pb2.MetaNetDef()
# if metanet_pb2 wasn't initialized properly the following fails with a
# cryptic message: "Parameter to MergeFrom() must be instance of same
# class: expected caffe2.NetDef got caffe2.NetDef."
meta.nets.add(key="foo", value=net)
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