Achievement constructor
Achievement({})
Implementation
Achievement({
this.id,
this.reachedSteps,
this.descInfo,
this.localeReachedSteps,
this.localeAllSteps,
this.recentUpdateTime,
this.displayName,
this.gamePlayer,
this.visualizedThumbnailUri,
this.state,
this.allSteps,
this.type,
this.reachedThumbnailUri,
});