in background/function/main.py [0:0]
def translate_string(from_string, to_language):
""" Translates a string to a specified language.
from_string - the original string before translation
to_language - the language to translate to, as a two-letter code (e.g.,
'en' for english, 'de' for german)
Returns the translated string and the code for original language
"""
result = xlate.translate(from_string, target_language=to_language)
return result['translatedText'], result['detectedSourceLanguage']