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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 build_commands(self, block):
 """ Build all of the manipulation commands for a given block. - One pair to set the text. - Multiple pairs for styles. - Multiple pairs for entities. """

        text_commands = Command.start_stop('text', 0, len(block['text']))
        style_commands = self.build_style_commands(block)
        entity_commands = self.build_entity_commands(block)

        return text_commands + style_commands + entity_commands