nl_tokens: No parsing leaving to reader or a downstream op .
pl_tokens: function raw ( incomingData , logger , opConfig , metadata , slice ) { const <mask> = _toRecords ( incomingData , opConfig . line_delimiter , slice ) ; return data . map ( ( record ) => { try { return DataEntity . make ( { data : record } , metadata ) ; } catch ( err ) { if ( opConfig . _dead_letter_action === 'log' ) { logger . error ( err , 'Bad record:' , record ) ; } else if ( opConfig . _dead_letter_action === 'throw' ) { throw err ; } return null ; } } ) ; }