code: def test(
      extra_args: str | list[str] | None = None,
      exit: bool = True,
      append: bool = True,
      location: str = "",
  ) -> int:
      """
      Test runner that allows testing of installed package.
  
      Exists with test status code upon completion.
  
      Parameters
      ----------
      extra_args : {str, list[str]}, default None
          Extra arguments to pass to pytest. Default options are --tb=short
          and --disable-pytest-warnings. Providing extra_args overwrites the
          defaults with the user-provided arguments.
      """
  
      import sys
  
      try:
          import pytest
      except ImportError:
          raise ImportError("Need pytest to run tests")
  
      cmd = ["--tb=auto", "--disable-pytest-warnings"]
      if extra_args:
          if not isinstance(extra_args, list):
              pytest_args = [extra_args]
          else:
              pytest_args = extra_args
          if append:
              cmd += pytest_args[:]
          else:
              cmd = pytest_args
      pkg_loc = PKG
      if location:
          pkg_loc = os.path.abspath(os.path.join(PKG, location))
      if not os.path.exists(pkg_loc):
          raise RuntimeError(
              f"{pkg_loc} was not found. Unable to run tests"
          )
      cmd = [pkg_loc] + cmd
      print("running: pytest {}".format(" ".join(cmd)))
      status = pytest.main(cmd)
      if exit:  # pragma: no cover
          sys.exit(status)
      return status
  
imports: from __future__ import annotations
  import os
  from arch.utility.cov import cov_nw
label_desc: Use image node_id 1 for calling a global function with example usage: test(extra_args, exit, append, location) and returns: status