'Get the security metadata for an IoT hub. For more information, see:
https://docs.microsoft.com/azure/iot-hub/iot-hub-devguide-security.
Get the security metadata for an IoT hub. For more information, see:
https://docs.microsoft.com/azure/iot-hub/iot-hub-devguide-security.
:param resource_group_name: The name of the resource group that
contains the IoT hub.
:type resource_group_name: str
:param resource_name: The name of the IoT hub.
:type resource_name: str
:param dict custom_headers: headers that will be added to the request
:param bool raw: returns the direct response alongside the
deserialized response
:param operation_config: :ref:`Operation configuration
overrides<msrest:optionsforoperations>`.
:rtype: :class:`SharedAccessSignatureAuthorizationRulePaged
<azure.mgmt.iothub.models.SharedAccessSignatureAuthorizationRulePaged>`
:raises:
:class:`ErrorDetailsException<azure.mgmt.iothub.models.ErrorDetailsException>`'

def list_keys(self, resource_group_name, resource_name, custom_headers=None, raw=False, **operation_config):

    def internal_paging(next_link=None, raw=False):
        if (not next_link):
            url = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Devices/IotHubs/{resourceName}/listkeys'
            path_format_arguments = {'subscriptionId': self._serialize.url('self.config.subscription_id', self.config.subscription_id, 'str'), 'resourceGroupName': self._serialize.url('resource_group_name', resource_group_name, 'str'), 'resourceName': self._serialize.url('resource_name', resource_name, 'str')}
            url = self._client.format_url(url, **path_format_arguments)
            query_parameters = {}
            query_parameters['api-version'] = self._serialize.query('self.api_version', self.api_version, 'str')
        else:
            url = next_link
            query_parameters = {}
        header_parameters = {}
        header_parameters['Content-Type'] = 'application/json;    charset=utf-8'
        if self.config.generate_client_request_id:
            header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
        if custom_headers:
            header_parameters.update(custom_headers)
        if (self.config.accept_language is not None):
            header_parameters['accept-language'] = self._serialize.header('self.config.accept_language', self.config.accept_language, 'str')
        request = self._client.post(url, query_parameters)
        response = self._client.send(request, header_parameters, **operation_config)
        if (response.status_code not in [200]):
            raise models.ErrorDetailsException(self._deserialize, response)
        return response
    deserialized = models.SharedAccessSignatureAuthorizationRulePaged(internal_paging, self._deserialize.dependencies)
    if raw:
        header_dict = {}
        client_raw_response = models.SharedAccessSignatureAuthorizationRulePaged(internal_paging, self._deserialize.dependencies, header_dict)
        return client_raw_response
    return deserialized
