getFamilyInfo method
Gets information regarding the family that the user is part of.
Request parameters:
source - String to identify the originator of this request.
$fields - Selector specifying which fields to include in a partial
response.
Completes with a FamilyInfo.
Completes with a commons.ApiRequestError if the API endpoint returned an error.
If the used http.Client completes with an error when making a REST call,
this method will complete with the same error.
Implementation
async.Future<FamilyInfo> getFamilyInfo({
  core.String? source,
  core.String? $fields,
}) async {
  final queryParams_ = <core.String, core.List<core.String>>{
    if (source != null) 'source': [source],
    if ($fields != null) 'fields': [$fields],
  };
  const url_ = 'books/v1/familysharing/getFamilyInfo';
  final response_ = await _requester.request(
    url_,
    'GET',
    queryParams: queryParams_,
  );
  return FamilyInfo.fromJson(
    response_ as core.Map<core.String, core.dynamic>,
  );
}