pub trait ExpressionQueryContextAttrs<'input>: HamelinParserContext<'input> {
// Provided method
fn expression(&self) -> Option<Rc<ExpressionContextAll<'input>>>
where Self: Sized { ... }
}pub trait ExpressionQueryContextAttrs<'input>: HamelinParserContext<'input> {
// Provided method
fn expression(&self) -> Option<Rc<ExpressionContextAll<'input>>>
where Self: Sized { ... }
}