Translation object unintuitive behaviour

[LLCampos]

The behaviour of the Translation object is different if it was gotten using get_translations or get_translation method.

unbabel = UnbabelApi(username=username,api_key=api_key,sandbox=False)

translations = unbabel.get_translations('completed')
translation = translations[0]
uid = translation.uid

print translation.translation 

This returns:

None

But if afterwards I do:

translation = unbabel.get_translation(uid)
print translation.translation

I get the translation text.

This is really confusing.