GW2v2WizardsVaultObjectiveProgress   
  constructor(id: GW2WizardsVaultObjectiveId, title: String, track: String, acclaim: Int, progressCurrent: Int, progressComplete: Int, claimed: Boolean)
Parameters
id
the objective's ID
title
the objective's title
track
the objective's track
acclaim
the amount of Astral Acclaim rewarded by the objective
progressCurrent 
the current progress towards the objective
progressComplete 
the treshold for the objective to be considered complete
claimed
a flag indicating whether the objective has been claimed