def get_service_definition(self, service_type, identifier, allow_fault_in=None, preview_fault_in=None):
        """GetServiceDefinition.
        [Preview API] Finds a given service definition.
        :param str service_type:
        :param str identifier:
        :param bool allow_fault_in: If true, we will attempt to fault in a host instance mapping if in SPS.
        :param bool preview_fault_in: If true, we will calculate and return a host instance mapping, but not persist it.
        :rtype: :class:`<ServiceDefinition> <azure.devops.v5_0.location.models.ServiceDefinition>`
        """
        route_values = {}
        if service_type is not None:
            route_values['serviceType'] = self._serialize.url('service_type', service_type, 'str')
        if identifier is not None:
            route_values['identifier'] = self._serialize.url('identifier', identifier, 'str')
        query_parameters = {}
        if allow_fault_in is not None:
            query_parameters['allowFaultIn'] = self._serialize.query('allow_fault_in', allow_fault_in, 'bool')
        if preview_fault_in is not None:
            query_parameters['previewFaultIn'] = self._serialize.query('preview_fault_in', preview_fault_in, 'bool')
        response = self._send(http_method='GET',
                              location_id='d810a47d-f4f4-4a62-a03f-fa1860585c4c',
                              version='5.0-preview.1',
                              route_values=route_values,
                              query_parameters=query_parameters)
        return self._deserialize('ServiceDefinition', response)
def get_service_definition ( self , service_type , identifier , allow_fault_in = None , preview_fault_in = None ) : route_values = { } if service_type is not None : route_values [ 'serviceType' ] = self . _serialize . url ( 'service_type' , service_type , 'str' ) if identifier is not None : route_values [ 'identifier' ] = self . _serialize . url ( 'identifier' , identifier , 'str' ) query_parameters = { } if allow_fault_in is not None : query_parameters [ 'allowFaultIn' ] = self . _serialize . query ( 'allow_fault_in' , allow_fault_in , 'bool' ) if preview_fault_in is not None : query_parameters [ 'previewFaultIn' ] = self . _serialize . query ( 'preview_fault_in' , preview_fault_in , 'bool' ) response = self . _send ( http_method = 'GET' , location_id = 'd810a47d-f4f4-4a62-a03f-fa1860585c4c' , version = '5.0-preview.1' , route_values = route_values , query_parameters = query_parameters ) return self . _deserialize ( 'ServiceDefinition' , response )
GetServiceDefinition.
        [Preview API] Finds a given service definition.
        :param str service_type:
        :param str identifier:
        :param bool allow_fault_in: If true, we will attempt to fault in a host instance mapping if in SPS.
        :param bool preview_fault_in: If true, we will calculate and return a host instance mapping, but not persist it.
        :rtype: :class:`<ServiceDefinition> <azure.devops.v5_0.location.models.ServiceDefinition>`