code: func UnmarshalValidationEnabled(enabled bool) {
  	if enabled {
  		atomic.StoreUintptr(&validate, 1)
  	} else {
  		atomic.StoreUintptr(&validate, 0)
  	}
  }
docs: // UnmarshalValidationEnabled provides the option to disable JSON validation
  // during the Unmarshal routine. Validation is enabled by default.
  //
  // Deprecated: Use encoder/json.Unmarshal instead