original_string: public static function getExtensionSignature(string $namespace, string $extensionKey, string $separator = '.'): string {
      return self::extensionSignature($namespace, $extensionKey, $separator);
    }
code: public static function getExtensionSignature(string $namespace, string $extensionKey, string $separator = '.'): string {
      return self::extensionSignature($namespace, $extensionKey, $separator);
    }
code_tokens: public static function getExtensionSignature ( string $ namespace , string $ extensionKey , string $ separator = '.' ) : string { return self :: extensionSignature ( $ namespace , $ extensionKey , $ separator ) ; }
docstring: Alias for the `extensionSignature` function.
  
  @param string $namespace The namespace
  @param string $extensionKey The extension key
  @param string $separator The optional separator, defaults to `.`
  @return string The extension signature
docstring_tokens: Alias for the extensionSignature function .