Convert a value to protobuf. e.g. BoolValue, Int32Value.

    Args:
        value (dict): A dict that needs to be converted to protobuf.
        proto_type (str): The type of the Protobuf.

    Returns:
        An instance of the specified protobuf.

def _value_to_pb(value, proto_type):
    """
    Convert a value to protobuf. e.g. BoolValue, Int32Value.

    Args:
        value (dict): A dict that needs to be converted to protobuf.
        proto_type (str): The type of the Protobuf.

    Returns:
        An instance of the specified protobuf.
    """
    data_type_pb = getattr(google_dot_protobuf_dot_wrappers__pb2, proto_type)()
    ParseDict(value, data_type_pb)
    return data_type_pb