What will the api_url, file_url and from_base methods return and in what format?

Question

Python

@dataclass(frozen=True)    
class TelegramAPIServer:  

    base: str
    file: str

    def api_url(self, token: str, method: str) -> str:
        """
        Generate URL for API methods

        :param token: Bot token
        :param method: API method name (case insensitive)
        :return: URL
        """
        return self.base.format(token=token, method=method)

    def file_url(self, token: str, path: str) -> str:
        """
        Generate URL for downloading files

        :param token: Bot token
        :param path: file path
        :return: URL
        """
        return self.file.format(token=token, path=path)

    @classmethod
    def from_base(cls, base: str) -> 'TelegramAPIServer':
        base = base.rstrip("/")
        return cls(
            base=f"{base}/bot{{token}}/{{method}}" ,
            file=f"{base}/file/bot{{token}}/{{path}}" ,
        )