public function getNumberOfRowsPerAnswer(Collection $answers): array 	{ 		$answers_rows = []; 		$max_chars_per_row = 70;  		$answers->each(function (Answer $answer) use (&$answers_rows, &$max_chars_per_row) { 			array_push($answers_rows, ceil(Str::length($answer->answer_value) / $max_chars_per_row)); 		});  		return $answers_rows; 	}