def METHOD_NAME() -> str:
    """Checks for possible commands to run Model Optimizer. The following
    commands will be tested:
        'mo.py' - if you installed OpenVINO using the installer.
        'mo' - if you installed OpenVINO with pip.
    Returns:
        str: Command to run Model Optimizer. If it is not available,
            the empty string "" will be returned.
    """
    mo_command = ''
    mo_commands = ['mo.py', 'mo']
    for command in mo_commands:
        is_available = True
        try:
            run(f'{command} -h',
                stdout=subprocess.DEVNULL,
                stderr=subprocess.DEVNULL,
                shell=True,
                check=True)
        except CalledProcessError:
            is_available = False
        if is_available:
            mo_command = command
    return mo_command