code: def git_ssh_connection(git_server):
      from sshfs import SSHFileSystem
  
      return SSHFileSystem(
          host=git_server["host"],
          port=git_server["port"],
          username=TEST_SSH_USER,
          client_keys=[TEST_SSH_KEY_PATH],
      )
  
file_path: dvc/tests/remotes/git_server.py
imports: import pytest
  from dvc_ssh.tests.cloud import SSH, TEST_SSH_KEY_PATH, TEST_SSH_USER
label_desc: Use image node_id 2 for calling a global function with example usage: git_ssh_connection(git_server) and returns: SSHFileSystem