Suggestion: Add has_muted, is_muted_by, mute, unmute methods in Steem Python Library

I have been studying the official Steem Python library at https://github.com/steemit/steem-python and IMHO it lacks of checking if any given ID is muted by the Account. Simply put, the has_muted is useful in checking if current account has muted a given ID, and unmute will simply unmute the ID. These two can be described by the following:

id = Account("justyy")
if id.has_muted("someone"):
   id.unmute("someone")

Similarly, is_muted_by checks the other way around and mute will mute the given ID:

id = Account("justyy")
if id.is_muted_by("someone"):
    id.mute("someone")

These four methods should be a great add-on features to the steem python library!