code: def test_get_run_command_tmpfs() -> None:
      container = LinuxContainer("test", tmp_filesystem="tmpfs")
      command = " ".join(container.get_run_command(["hi", "hello"]))
      assert "--mount type=tmpfs,destination=/tmp" in command
  
imports: import sys
  import pytest
  from ci.ray_ci.linux_container import LinuxContainer
label_desc: Use image node_id 3 for calling a global function with example usage: test_get_run_command_tmpfs() without return types