original_string: public function setNumber($number = null)
      {
          $this->number = null !== $number ? floatval($number) : null;
  
          return $this;
      }
code: public function setNumber($number = null)
      {
          $this->number = null !== $number ? floatval($number) : null;
  
          return $this;
      }
code_tokens: public function setNumber ( $ number = null ) { $ this -> number = null !== $ number ? floatval ( $ number ) : null ; return $ this ; }
docstring: Sets the number.
  
  @param float $number
  @return NumberCharacteristic
docstring_tokens: Sets the number .