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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 baremetal(self):
 """Returns an baremetal service client"""


        # TODO(d0ugal): When the ironicclient has it's own OSC plugin, the
        # following client handling code should be removed in favor of the
        # upstream version.

        if self._baremetal is not None:
            return self._baremetal

        endpoint = self._instance.get_endpoint_for_service_type(
            "baremetal",
            region_name=self._instance._region_name,
        )

        token = self._instance.auth.get_token(self._instance.session)

        self._baremetal = ironic_client.get_client(
            1, os_auth_token=token, ironic_url=endpoint,
            ca_file=self._instance._cli_options.os_cacert)

        return self._baremetal