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# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from google.protobuf import field_mask_pb2
class FieldMaskRule:
"""A marshal between FieldMask and strings.
See https://github.com/googleapis/proto-plus-python/issues/333
and
https://developers.google.com/protocol-buffers/docs/proto3#json
for more details.
"""
def to_python(self, value, *, absent: bool = None):
return value
def to_proto(self, value):
if isinstance(value, str):
field_mask_value = field_mask_pb2.FieldMask()
field_mask_value.FromJsonString(value=value)
return field_mask_value
return value
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