This method will store or update a string identified by a key into a user's session. These strings are returned by rxc-session-get. When the user logs out or their session expires due to inactivity, these strings are automatically cleared. Only A-Z, a-z, 0-9 and underscore characters are allowed as the key identifiers. All keys are converted to lower case.
|key||String||This is the unique identifier of the string we want to store or update.|
|value||String||(Optional) This is the value to save in the user's session. If not specified or empty, the string is cleared from the user's session.|
|format||enumeration||(optional) Set this value to "xml" for XML raw formatted output, "xml-clean" for XML tidy formatted output or "json" for JSON formatted output. If not passed, "xml" is used as a default|