multipart method
Implementation
MethodWithBody multipart(Map<String, dynamic> values) {
if (_body is! Map<String, Multipart>) {
_body = <String, Multipart>{};
}
for (String field in values.keys) {
dynamic value = values[field];
if (value is List<int>) {
multipartFile(field, value);
} else if (value is Multipart) {
_body[field] = value;
} else {
multipartField(field, value);
}
}
return this;
}