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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 update_buffer_with_value( self, value, buffer, parent=None ):
 """Write a Python object into a byte array, using the field definition. value Input Python object to process. buffer Output byte array to encode value into. parent Parent block object where this Field is defined. Used for e.g. evaluating Refs. """

        assert common.is_bytes( buffer )
        self.validate( value, parent )
        return