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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 delete_collaborator(self, email):
 """Remove a collaborating user from the shared project. :param email: The collaborator's email address. :type email: str """

        args = {
            'project_id': self.id,
            'email': email,
        }
        _perform_command(self.owner, 'delete_collaborator', args)