{"ast_node_type":"variable","tokens":[{"end":71,"kind":"keyword","start":0,"text":"let"}]}
    let callable = sema.resolve_method_call_as_callable(&method_call)?;
    let method_call = ast::MethodCallExpr::cast(original_token.parent()?.parent()?)?;
    let CallableKind::Function(f) = callable.kind() else { return None };