original_string: public function setLastname($lastname)
      {
          $lastname = ($lastname === null ? $lastname : (string) $lastname);
  
          if ($this->exists() && $this->lastname !== $lastname) {
              $this->updated['lastname'] = true;
          }
  
          $this->lastname = $lastname;
  
          return $this;
      }
code: public function setLastname($lastname)
      {
          $lastname = ($lastname === null ? $lastname : (string) $lastname);
  
          if ($this->exists() && $this->lastname !== $lastname) {
              $this->updated['lastname'] = true;
          }
  
          $this->lastname = $lastname;
  
          return $this;
      }
code_tokens: public function setLastname ( $ lastname ) { $ lastname = ( $ lastname === null ? $ lastname : ( string ) $ lastname ) ; if ( $ this -> exists ( ) && $ this -> lastname !== $ lastname ) { $ this -> updated [ 'lastname' ] = true ; } $ this -> lastname = $ lastname ; return $ this ; }
docstring: Set value for field "user_lastname"
  
  @param  string $lastname
  @return $this
docstring_tokens: Set value for field user_lastname