pub(crate) fn collect_param_markers(
inputs: &Punctuated<FnArg, Comma>,
) -> Result<Vec<(String, Vec<ParamMarker>)>>Expand description
The markers of every parameter of inputs that carries one, keyed by
Rust name, in signature order. Nested or stacked markers are an error
(see crate::type_inspect::peel_param_markers).