original_string: public function getClass($classname)
      {
          if ((string) $classname == '' || !array_key_exists($classname, $this->classes)) {
              throw new ImageClassNotRegisteredException($classname);
          }
          return $this->classes[$classname];
      }
code: public function getClass($classname)
      {
          if ((string) $classname == '' || !array_key_exists($classname, $this->classes)) {
              throw new ImageClassNotRegisteredException($classname);
          }
          return $this->classes[$classname];
      }
code_tokens: public function getClass ( $ classname ) { if ( ( string ) $ classname == '' || ! array_key_exists ( $ classname , $ this -> classes ) ) { throw new ImageClassNotRegisteredException ( $ classname ) ; } return $ this -> classes [ $ classname ] ; }
docstring: Get a ResponsiveImageClass by it's name
  
  @param string $classname
  @return ResponsiveImageClass
docstring_tokens: Get a ResponsiveImageClass by it s name