Removes a user from the system.

        Args:
            customer_id: Identifier of the client to be deleted.

        Returns:

def delete_customer(self, customer_id):
        """
        Removes a user from the system.

        Args:
            customer_id: Identifier of the client to be deleted.

        Returns:

        """
        return self.client._delete(self.url + 'customers/{}'.format(customer_id), headers=self.get_headers())