Function decode_call_ex

pub fn decode_call_ex<C: Context>(
    ctx: &C,
    call: Call,
    index: usize,
    assume_km_reachable: bool,
) -> Result<Option<(Call, Metadata)>, Error>

Decode call arguments.

Returns Some((Call, Metadata)) when processing should proceed and None in case further execution needs to be deferred (e.g., because key manager access is required). If assume_km_reachable is set, then this method will return errors instead of None.