func Is(value any) bool
Is returns true if value is any type of nil. e.g. nil or []byte(nil).
func Normalize(v any) any
Normalize converts typed nils (e.g. []byte(nil)) into untyped nil. Other values are returned unmodified.
func NormalizeSlice(s []any)
NormalizeSlice converts all typed nils (e.g. []byte(nil)) in s into untyped nils. Other values are unmodified. s is mutated in place.