text: from typing import Optional
  from requests import post, Response
  from . import Http as Http_
  from base64 import b64decode
  
  
  class Http:
      sid: str = None
      has_error: bool = False
  
      def __init__(self, solver_url: str, user_agent: str):
          self.headers = {'Content-Type': 'application/json'}
          self.solver_url = solver_url
          self.user_agent = user_agent
          self.cookies = {}
  
      def create_session(self, sid: str = None) -> Optional[str]:
          self.sid = post(self.solver_url, json={
              'cmd': 'sessions.create',
              'userAgent': self.user_agent,
              'session': sid,
          }).json().get('session', None)
          return self.sid
  
      def destroy_session(self):
          post(self.solver_url, json={
              'session': self.sid,
          })
  
      def get(self, url, headers: dict = None, cookies: dict = None, **kwargs) -> Response:
          cookies = [{'name': k, 'value': cookies[k]} for k in cookies] if cookies is not None else []
          return post(self.solver_url, json={
              'session': self.sid,
              'cmd': 'request.get',
              'url': url,
              'userAgent': self.user_agent,
              'headers': headers or {},
              'cookies': cookies,
              **kwargs,
          }, headers=self.headers)
  
      def post(self, url, headers: dict = None, data: dict = None, cookies: dict = None, **kwargs) -> Response:
          cookies = [{'name': k, 'value': cookies[k]} for k in cookies] if cookies is not None else []
          post_data = data or {}
          encoded_data = []
          for k in post_data:
              encoded_data.append(f'{k}={post_data[k]}')
          headers = headers or {}
          headers.setdefault('Content-Type', 'application/x-www-form-urlencoded')
          return post(self.solver_url, json={
              'session': self.sid,
              'cmd': 'request.post',
              'url': url,
              'userAgent': self.user_agent,
              'headers': headers,
              'postData': encoded_data,
              'cookies': cookies,
              **kwargs,
          }, headers=self.headers)
  
      def file(self, url, headers: dict = None, cookies: dict = None, **kwargs) -> bytes:
          response = self.get(url, headers, download=True, cookies=cookies, **kwargs)
          return b64decode(response.json().get('solution', {}).get('response'))
  