import socket
import yandex_pb2
model = yandex_pb2.ConnectionRequest()
model.apiKey = "wefeww-wefwefwefwe-wefw-wef-we-fw-e"
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('asr.yandex.net', 80))
header = ("GET /asr_partial HTTP/1.1\r\n"
                   "User-Agent: KeepAliveClient\r\n"
                   "Host: asr.yandex.net:80\r\n"
                   "Upgrade: dictation\r\n\r\n")
byte_head = header.encode()
s.send(byte_head)
message = model
message_size = hex(len(message))[2:].encode()
message_contoller = '\r\n'.encode()
message_request = message.encode()
s.send(message_size)
s.send(message_contoller)
s.send(message_request)
data = s.recv(1000000)
s.close()

 use 'syntax = "proto2"
message ConnectionRequest
{
  optional int32 protocolVersion = 1 [default = 1];
  
  required string speechkitVersion = 2;
            
  required string serviceName = 3;
            
  required string uuid = 4;
            
  required string apiKey = 5;
            
  required string applicationName = 6;
            
  required string device = 7;
            
  required string coords = 8;
            
  required string topic = 9;
            
  required string lang = 10;
            
  required string format =11;
  optional bool disableAntimatNormalizer = 18 [default = false];
  optional AdvancedASROptions advancedASROptions = 19;
            
 }
message AdvancedASROptions
{
  optional bool partial_results = 1 [default = true];
  optional string biometry = 24;
}