Merge pull request line#56 from nnsnodnb/master

Fix super class to Template for CarouselTemplate.

Author: be-hase

models/template.py

@@ -146,7 +146,7 @@ def __init__(self, text=None, actions=None, **kwargs):
         self.actions = _get_actions(actions)
 
 
-class CarouselTemplate(Base):
+class CarouselTemplate(Template):
     """CarouselTemplate.
 
     https://devdocs.line.me/en/#carousel