code: def supported_types_for_non_geo_entity(country_code):
      
      metadata = PhoneMetadata.metadata_for_nongeo_region(country_code, None)
      if metadata is None:
          return set()
      return _supported_types_for_metadata(metadata)
docs: Returns the types for a country-code belonging to a non-geographical entity
      which the library has metadata for. Will not include FIXED_LINE_OR_MOBILE
      (if numbers for this non-geographical entity could be classified as
      FIXED_LINE_OR_MOBILE, both FIXED_LINE and MOBILE would be present) and
      UNKNOWN.
  
      No types will be returned for country calling codes that do not map to a
      known non-geographical entity.