How to use the hvac.utils.deprecated_method function in hvac

    @utils.deprecated_method(
        to_be_removed_in_version='0.9.0',
        new_method=api.secrets_engines.Transit.sign_data,
    )
    def transit_sign_data(self, name, input_data, key_version=None, algorithm=None, context=None, prehashed=None,
                          mount_point='transit', signature_algorithm='pss'):
        """POST //sign/(/)

        :param name:
        :type name:
        :param input_data:
        :type input_data:
        :param key_version:
        :type key_version:
        :param algorithm:
        :type algorithm:
        :param context:

    @utils.deprecated_method(
        to_be_removed_in_version='0.9.0',
        new_method=api.SystemBackend.rekey,
    )
    def rekey(self, key, nonce=None):
        self.sys.rekey(
            key=key,
            nonce=nonce,
        )

    @utils.deprecated_method(
        to_be_removed_in_version='0.8.0',
        new_method=adapters.Request.get,
    )
    def _get(self, *args, **kwargs):
        return self._adapter.get(*args, **kwargs)

    @utils.deprecated_method(
        to_be_removed_in_version='0.9.0',
        new_method=api.SystemBackend.list_policies,
    )
    def list_policies(self):
        policies = self.sys.list_policies()['data']['policies']
        return policies

    @utils.deprecated_method(
        to_be_removed_in_version='0.9.0',
        new_method=api.secrets_engines.Transit.decrypt_data,
    )
    def transit_decrypt_data(self, name, ciphertext, context=None, nonce=None, batch_input=None, mount_point='transit'):
        """POST //decrypt/

        :param name:
        :type name:
        :param ciphertext:
        :type ciphertext:
        :param context:
        :type context:
        :param nonce:
        :type nonce:
        :param batch_input:
        :type batch_input:

    @utils.deprecated_method(
        to_be_removed_in_version='0.8.0',
        new_method=adapters.Request.delete,
    )
    def _delete(self, *args, **kwargs):
        return self._adapter.delete(*args, **kwargs)

    @utils.deprecated_method(
        to_be_removed_in_version='0.9.0',
        new_method=api.SystemBackend.delete_policy,
    )
    def delete_policy(self, name):
        self.sys.delete_policy(name=name)

    @utils.deprecated_method(
        to_be_removed_in_version='0.9.0',
        new_method=api.SystemBackend.revoke_lease,
    )
    def revoke_secret(self, lease_id):
        return self.sys.revoke_lease(
            lease_id=lease_id,
        )

    @utils.deprecated_method(
        to_be_removed_in_version='0.11.2',
        new_method=api.auth_methods.Aws.delete_config,
    )
    def delete_vault_ec2_client_configuration(self, mount_point='aws-ec2'):
        """DELETE /auth//config/client

        :param mount_point:
        :type mount_point:
        :return:
        :rtype:
        """
        return self._adapter.delete('/v1/auth/{0}/config/client'.format(mount_point))