()
return InstallInfo.try_load() is not None
Returns true when install.json is present
Returns true when install.json is present
Returns true when install . json is present
def is_installed() -> bool:
    """Returns true when install.json is present"""
    return InstallInfo.try_load() is not None
def is_installed ( ) -> bool : return InstallInfo . try_load ( ) is not None