post method
Implementation
Future<Response> post(url,
{Map<String, String>? headers, required body, Encoding? encoding}) {
RequestData data = _sendInterception(
method: Method.POST,
headers: headers,
url: url,
body: body,
encoding: encoding);
return _withClient<Response>((client) => client.post(Uri.parse(data.url),
headers: data.headers, body: data.body, encoding: data.encoding));
}