Using TargetingIdeaService and with using Criterion "platform"

Hi, I want to get the "search volume" with using TargetingIdeaService and with using Criterion "platform" https://developers.google.com/adwords/api/docs/reference/v201708/TargetingIdeaService.Platform but in googleads-php-lib/src/Google/AdsApi/AdWords/v201708/cm/ there is no such class. Tell

TargetingIdeaService with Criterion "platform"

Hi, I want to get the Search Volume with using TargetingIdeaService with Criterion "platform" https://developers.google.com/adwords/api/docs/reference/v201708/TargetingIdeaService.Platform but in googleads-php-lib/src/Google/AdsApi/AdWords/v201708/cm/ there is no such class. Tell me, please, ho