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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def from_dict(cls, json_object):
 """Constructs a `OpenAIGPTConfig` from a Python dictionary of parameters."""

        config = OpenAIGPTConfig(vocab_size_or_config_json_file=-1)
        for key, value in json_object.items():
            config.__dict__[key] = value
        return config