original_string: public function getKey($refers_to = false) {
  		if ($refers_to === true && $this->refers_to !== false) {
  			return $this->refers_to;
  		}
  
  		return $this->key;
  	}
code: public function getKey($refers_to = false) {
  		if ($refers_to === true && $this->refers_to !== false) {
  			return $this->refers_to;
  		}
  
  		return $this->key;
  	}
code_tokens: public function getKey ( $ refers_to = false ) { if ( $ refers_to === true && $ this -> refers_to !== false ) { return $ this -> refers_to ; } return $ this -> key ; }
docstring: Get column key
  
  @param bool $refers_to
  
  @return string
docstring_tokens: Get column key