policy method Null safety

Future<L0StorageModelPolicyRsp> policy(
  1. L0StorageModelPolicyReq body
)

Implementation

Future<L0StorageModelPolicyRsp> policy(L0StorageModelPolicyReq body) async {
  http.Response rsp = await http.post(_uri,
      headers: _headers, body: jsonEncode(body.toMap()));
  if (rsp.statusCode == 200) {
    return L0StorageModelPolicyRsp.fromMap(jsonDecode(rsp.body));
  } else {
    throw HttpException(
        'HTTP Error ${rsp.statusCode}: ${jsonDecode(rsp.body)}');
  }
}