How to use the apio.util.get_package_dir function in apio

def get_package_version(self, name, release_name=''):
        version = '0.0.0'
        if name in self.packages:
            version = self.packages.get(name).get('version')
        elif release_name:
            dir_name = util.get_package_dir(release_name)
            if isdir(dir_name):
                filepath = util.safe_join(dir_name, 'package.json')
                try:
                    with open(filepath, 'r') as json_file:
                        tmp_data = json.load(json_file)
                        if 'version' in tmp_data.keys():
                            version = tmp_data.get('version')
                except Exception:
                    pass
        return version

def _ftdi_enable_windows(self):
        drivers_base_dir = util.get_package_dir('tools-drivers')
        drivers_bin_dir = util.safe_join(drivers_base_dir, 'bin')
        drivers_share_dir = util.safe_join(drivers_base_dir, 'share')
        zadig_ini_path = util.safe_join(drivers_share_dir, 'zadig.ini')
        zadig_ini = 'zadig.ini'

        try:
            if util.check_package(
                self.name,
                self.version,
                self.spec_version,
                drivers_bin_dir
            ):
                click.secho('Launch drivers configuration tool')
                click.secho(FTDI_INSTALL_DRIVER_INSTRUCTIONS, fg='yellow')
                # Copy zadig.ini
                with open(zadig_ini, 'w') as ini_file:

def _run_command(self, command, silent=False):
        result = {}
        system_base_dir = util.get_package_dir('tools-system')
        system_bin_dir = util.safe_join(system_base_dir, 'bin')

        on_stdout = None if silent else self._on_stdout
        on_stderr = self._on_stderr

        if util.check_package(
            self.name,
            self.version,
            self.spec_version,
            system_bin_dir
        ):
            result = util.exec_command(
                util.safe_join(system_bin_dir, command + self.ext),
                stdout=util.AsyncPipe(on_stdout),
                stderr=util.AsyncPipe(on_stderr))

def __init__(self):
        profile = Profile()
        resources = Resources()

        self.name = 'examples'
        self.examples_dir = util.get_package_dir(self.name)
        self.version = util.get_package_version(self.name, profile)
        self.spec_version = util.get_package_spec_version(self.name, resources)