setExtraContactParams method
Implementation
void setExtraContactParams(Map<String, dynamic>? extraContactParams) {
extraContactParams ??= <String, dynamic>{};
// Reset it.
_extraContactParams = '';
extraContactParams.forEach((String param_key, dynamic param_value) {
_extraContactParams += ';$param_key';
if (param_value != null) {
_extraContactParams += '=$param_value';
}
});
}