Implemented get_supported_languages() for DeepL and QCRI Translators

deep_translator/deepl.py

@@ -67,6 +67,9 @@ class DeepL(object):
         """
         return [self.translate(text, **kwargs) for text in batch]
 
+    def get_supported_languages(**kwargs):
+        return [*DeepL._languages.keys()]
+
     def _is_language_supported(self, lang, **kwargs):
         # The language is supported when is in the dicionary.
         return lang == 'auto' or lang in self._languages.keys() or lang in self._languages.values()

deep_translator/qcri.py

@@ -38,12 +38,12 @@ class QCRI(object):
         except Exception as e:
             raise e
 
-    def get_supported_languages(self, **kwargs):
+    def get_supported_languages(**kwargs):
         # Have no use for this as the format is not what we need
         # Save this for whenever
-        pairs = self._get("get_languages")
+        # pairs = self._get("get_languages")
         # Using a this one instead
-        return QCRI_LANGUAGE_TO_CODE
+        return [*QCRI_LANGUAGE_TO_CODE.keys()]
 
     @property
     def languages(self):