pub(crate) fn strict_conversion_expectation(ty: &Type) -> Option<String>Expand description
The R-facing expectation of a strict lossy-integer parameter (i64,
u64, isize, usize and their Vec / Vec<Option<_>> forms), whose
Rust conversion accepts only integer and whole-number double input
(#1594): a single whole number / a single non-negative whole number
for a scalar, the vector’s usual integer or whole-number numeric
otherwise.