Set a manual override on an AWS service limits, i.e. if you
        had limits increased by AWS support.

        This method calls :py:meth:`._AwsService.set_limit_override`
        on the corresponding _AwsService instance.

        Explicitly set limit overrides using this method will take
        precedence over default limits. They will also take precedence over
        limit information obtained via Trusted Advisor, unless ``override_ta``
        is set to ``False``.

        :param service_name: the name of the service to override limit for
        :type service_name: str
        :param limit_name: the name of the limit to override:
        :type limit_name: str
        :param value: the new (overridden) limit value)
        :type value: int
        :param override_ta: whether or not to use this value even if Trusted
          Advisor supplies limit information
        :type override_ta: bool
        :raises: :py:exc:`ValueError` if limit_name is not known to the
          service instance

def set_limit_override(self, service_name, limit_name,
                           value, override_ta=True):
        """
        Set a manual override on an AWS service limits, i.e. if you
        had limits increased by AWS support.

        This method calls :py:meth:`._AwsService.set_limit_override`
        on the corresponding _AwsService instance.

        Explicitly set limit overrides using this method will take
        precedence over default limits. They will also take precedence over
        limit information obtained via Trusted Advisor, unless ``override_ta``
        is set to ``False``.

        :param service_name: the name of the service to override limit for
        :type service_name: str
        :param limit_name: the name of the limit to override:
        :type limit_name: str
        :param value: the new (overridden) limit value)
        :type value: int
        :param override_ta: whether or not to use this value even if Trusted
          Advisor supplies limit information
        :type override_ta: bool
        :raises: :py:exc:`ValueError` if limit_name is not known to the
          service instance
        """
        self.services[service_name].set_limit_override(
            limit_name,
            value,
            override_ta=override_ta
        )