[Feature]: Details of language supported exceptions

[zhaxnb]

Expect to happened

I need more details about the language supported exception. I use caiyun translator to translate ja to en, but translator doesn't support it, however output exceptions is "en" to "zh" is not supported, but i don't know which language i can use as the target language.

Expected APP Version

a future version

Expected Python Version

=3.6 (Default)

Expected Runtime Environment

NoArch (Default)

Country/Region

Japan

Expected Output

translators.server.TranslatorError: Unsupported translation: from [ja] to [en]! support from ja to self.language_map.get(from_language, [])

Code of Conduct

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[UlionTse]

import translators.server as tss

print(tss.caiyun('你好'))
print(tss._caiyun.language_map)