Geo helper functions let users easily fetch all geo ids of a given type. This could be extended to our non-US data sources, too, to make those easier to work with.
A wrapper around a geo helper function also lets us easily convert a request for "*" geo values to an explicit list, for the endpoints that don't support the wildcard "*". Related to https://github.com/cmu-delphi/epidatr/issues/235
Geo helper functions let users easily fetch all geo ids of a given type. This could be extended to our non-US data sources, too, to make those easier to work with.
A wrapper around a geo helper function also lets us easily convert a request for "*" geo values to an explicit list, for the endpoints that don't support the wildcard "*". Related to https://github.com/cmu-delphi/epidatr/issues/235