fn __pop_Variant57(
__symbols: &mut Vec<(LexerPosition, __Symbol, LexerPosition)>,
) -> (LexerPosition, Option<FunctionParameterDeclaration>, LexerPosition)
fn __pop_Variant57(
__symbols: &mut Vec<(LexerPosition, __Symbol, LexerPosition)>,
) -> (LexerPosition, Option<FunctionParameterDeclaration>, LexerPosition)