fn __pop_Variant13(
    __symbols: &mut Vec<(LexerPosition, __Symbol, LexerPosition)>,
) -> (LexerPosition, SingleDeclarationNoType, LexerPosition)fn __pop_Variant13(
    __symbols: &mut Vec<(LexerPosition, __Symbol, LexerPosition)>,
) -> (LexerPosition, SingleDeclarationNoType, LexerPosition)