Enums.VoiceGuidanceType enumeration

The VoiceGuidanceType can be one of:

Constant	Description
`Enums.VoiceGuidanceTypeApproachingManeuver`	`(0)` Voice guidance to be given when approaching a maneuver
`Enums.VoiceGuidanceTypeAtManeuver`	`(1)` Voice guidance to be given when at a maneuver location
`Enums.VoiceGuidanceTypeApproachingDestination`	`(2)` Voice guidance to be given when approaching a destination