code: def _start_ssh_agent(cls):
          
          env = dict()
          stdout = ClHelper.run_command('ssh-agent -s')
          lines = stdout.split('\n')
          for line in lines:
              if not line or line.startswith('echo '):
                  continue
              line = line.split(';')[0]
              parts = line.split('=')
              if len(parts) == 2:
                  env[parts[0]] = parts[1]
          return env
docs: Starts ssh-agent and returns the environment variables related to it