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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 _has_requirements(self):
 """Returns True if the workflow needs a requirements section. Returns: bool: True if the workflow needs a requirements section, False otherwise. """

        self._closed()

        return any([self.has_workflow_step, self.has_scatter_requirement,
                   self.has_multiple_inputs])