nl_tokens: define the action
pl_tokens: function whenRead ( args ) { let <mask> = getValue ( args ) if ( value && typeof value . then === 'function' ) { value . then ( ( val ) => whenTest ( args , val ) ) . catch ( ( error ) => { console . error ( ` ${ action . displayName } ` , error ) } ) } else { whenTest ( args , value ) } }