anchor.diff:  									"machine_type": {
   										Type:         schema.TypeString,
   										Required:     true,
  -										ForceNew:     true,
   										Description: `Optional. Machine type on which Airflow web server is running. It has to be one of: composer-n1-webserver-2, composer-n1-webserver-4 or composer-n1-webserver-8. If not specified, composer-n1-webserver-2 will be used. Value custom is returned only in response, if Airflow web server parameters were manually changed to a non-standard values.`,
   									},
   								},
  
positive.code: 									"machine_type": {
  										Type:         schema.TypeString,
  										Required:     true,
  										ForceNew:     true,
  										Description: `Optional. Cloud SQL machine type used by Airflow database. It has to be one of: db-n1-standard-2, db-n1-standard-4, db-n1-standard-8 or db-n1-standard-16. If not specified, db-n1-standard-2 will be used.`,
  									},
  								},
  
negative.code: 		}
  
  <% unless version == "ga" -%>
  		if d.HasChange("config.0.database_config.0.machine_type") {
  			patchObj := &composer.Environment{Config: &composer.EnvironmentConfig{}}
  			if config != nil {
  				patchObj.Config.DatabaseConfig = config.DatabaseConfig
  			}
  			err = resourceComposerEnvironmentPatchField("config.databaseConfig.machineType", patchObj, d, tfConfig)
  			if err != nil {
  				return err
  			}
  			d.SetPartial("config")
  		}
  
  		if d.HasChange("config.0.web_server_config.0.machine_type") {
  			patchObj := &composer.Environment{Config: &composer.EnvironmentConfig{}}
  			if config != nil {
  				patchObj.Config.WebServerConfig = config.WebServerConfig
  			}
  			err = resourceComposerEnvironmentPatchField("config.webServerConfig.machineType", patchObj, d, tfConfig)
  			if err != nil {
  				return err
  			}
  