The task object corresponding to the Cascade Historian. See locate_task in the Gamma manual.
The name of one or more (using a globbing pattern) histories to be acted upon. When this parameter is not specified, the default is *, to include all histories.
A list of history names matching the specified pattern, if successful. Otherwise returns nil and sets _last_error_ to the error string returned by the Cascade Historian.
This function generates a list of the histories available.
This function corresponds to the list command, and the Cogent API function HI_List.