Pseudo-namespace; it doesn't exist in code or script runtime, only in this documentation.
APHeadingModes
Heading modes for the autopilot system.
@ HEADING_WLV
The autopilot keeps the wings level.
@ HEADING_NAV
The autopilot flies an instrument landing system (ILS) approach if available. If no ILS is available,...
@ HEADING_FIXED
The autopilot flies a heading set by AutopilotClass.adjustHeading(int addedHeading)
@ HEADING_NONE
Disables all the heading modes.