# 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 # # http://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. class Formatter: @classmethod def deserialize(cls, value): """Return a formatted object representing the value""" raise NotImplementedError class BoolStr(Formatter): @classmethod def deserialize(cls, value): """Convert a boolean string to a boolean""" expr = str(value).lower() if "true" == expr: return True elif "false" == expr: return False else: raise ValueError(f"Unable to deserialize boolean string: {value}")