original_string: public function sum(){
  		
  		Number::setScale(static::NUMERIC_FUNCTIONS_SCALE);
  		
  		$total = '0';
  		
  		foreach($this->_Arr as $item){
  			$total = Number::add($total, \strval($item));
  		}
  		
  		return $total;
  		
  	}
code: public function sum(){
  		
  		Number::setScale(static::NUMERIC_FUNCTIONS_SCALE);
  		
  		$total = '0';
  		
  		foreach($this->_Arr as $item){
  			$total = Number::add($total, \strval($item));
  		}
  		
  		return $total;
  		
  	}
code_tokens: public function sum ( ) { Number :: setScale ( static :: NUMERIC_FUNCTIONS_SCALE ) ; $ total = '0' ; foreach ( $ this -> _Arr as $ item ) { $ total = Number :: add ( $ total , \ strval ( $ item ) ) ; } return $ total ; }
docstring: Computes the sum of all numbers in this list
  @return string
docstring_tokens: Computes the sum of all numbers in this list