Normalizes the keyword lists / maps passed as list-endpoint filters into a
clean keyword list suitable for Req's :params option: nil values are
dropped (matching the reference SDK's omitempty semantics) and atoms are
stringified.
Normalizes the keyword lists / maps passed as list-endpoint filters into a
clean keyword list suitable for Req's :params option: nil values are
dropped (matching the reference SDK's omitempty semantics) and atoms are
stringified.