Signature
TimelineRulerFormatOptions: { format: "seconds"; frameRate: never; timecodeFormatOptions: never } | { format: "timecode"; frameRate: TimecodeFrameRate; timecodeFormatOptions: Pick<TimecodeFormatOptions, "dropFrame"> } | { format: "frame-number"; frameRate: TimecodeFrameRate; timecodeFormatOptions: never }