def METHOD_NAME(self, endpoint: str = None) -> str:
    """
    Function that generates URL with all properties ( = detailed information about all avaliable columns for defined endpoint (schema)).
    Args:
        endpoint (str, optional): Hubspot schema from crm objects (eg. contacts, line_items, ...). Defaults to None.
    Returns:
        str: Url with properties for defined endpoint.
    """
    url = f"{self.base_url}/properties/v2/{endpoint}/properties"
    return url