Official Docs: sn_ws_int
These objects are relevant to Scripted REST APIs and are accessed via the request or response input parameters to Scripted APIs
RESTAPIRequest
Allows you to access request details in Scripted REST APIs
RESTAPIRequestBody
Allows you to access the request body as a stream, as a string, de-serialized into an object, or as an array of obects
RESTAPIResponse
Allows you to configure the HTTP response in Scripted REST APIs
RESTAPIResponseStream
Allows you to write streams or strings directly to the response stream in a Scripted REST API
WSRequest
Provides access to request input parameters
WSResponse
Allows setting response output parameters
WSSoapRequestDocument
SOAP request object as a DOM Document or XMLDocument2 (for new application scope)
WSSoapRequestXML
SOAP request object as a String