How to use the pipx.util.run function in pipx

def upgrade(self, pip_args: List[str], verbose: bool = False):
        # Don't try to upgrade multiple times per run
        if self.has_been_updated_this_run:
            logging.info("Already upgraded libraries in", self.root)
            return
        logging.info("Upgrading shared libraries in", self.root)

        ignored_args = ["--editable"]
        _pip_args = [arg for arg in pip_args if arg not in ignored_args]
        if not verbose:
            _pip_args.append("-q")
        try:
            with animate("upgrading shared libraries", not verbose):
                run(
                    [
                        self.python_path,
                        "-m",
                        "pip",
                        "--disable-pip-version-check",
                        "install",
                        *_pip_args,
                        "--upgrade",
                        "pip",
                        "setuptools",
                        "wheel",
                    ]
                )
                self.has_been_updated_this_run = True
        except Exception:
            logging.error("Failed to upgrade shared libraries", exc_info=True)

def _run_pip(self, cmd: List[str]) -> int:
        cmd = [str(self.python_path), "-m", "pip"] + cmd
        if not self.verbose:
            cmd.append("-q")
        return run(cmd)

def create_venv(self, venv_args: List[str], pip_args: List[str]) -> None:
        with animate("creating virtual environment", self.do_animation):
            cmd = [self._python, "-m", "venv", "--without-pip"]
            run(cmd + venv_args + [str(self.root)])
        shared_libs.create(pip_args, self.verbose)
        pipx_pth = get_site_packages(self.python_path) / PIPX_SHARED_PTH
        # write path pointing to the shared libs site-packages directory
        # example pipx_pth location:
        #   ~/.local/pipx/venvs/black/lib/python3.8/site-packages/pipx_shared.pth
        # example shared_libs.site_packages location:
        #   ~/.local/pipx/shared/lib/python3.6/site-packages
        #
        # https://docs.python.org/3/library/site.html
        # A path configuration file is a file whose name has the form 'name.pth'.
        # its contents are additional items (one per line) to be added to sys.path
        pipx_pth.write_text(str(shared_libs.site_packages) + "\n", encoding="utf-8")

        self.pipx_metadata.venv_args = venv_args
        self.pipx_metadata.python_version = self.get_python_version()

def run_app(self, app: str, app_args: List[str]) -> int:
        cmd = [str(self.bin_path / app)] + app_args
        try:
            return run(cmd, check=False)
        except KeyboardInterrupt:
            return 130  # shell code for Ctrl-C