Client.get_collections_list shouldn't be a classmethod?

[gjoseph92]

catalog = Client.open('https://earth-search.aws.element84.com/v0')
catalog.get_collections_list()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-7-ade3012ce385> in <module>
----> 1 catalog.get_collections_list()

~/Library/Caches/pypoetry/virtualenvs/stackstac-talk-YcC8wOkC-py3.9/lib/python3.9/site-packages/pystac_client/client.py in get_collections_list(self)
    158             of an API are always and only ever collections
    159         """
--> 160         return self.get_child_links()
    161 
    162     def search(self,

TypeError: get_child_links() missing 1 required positional argument: 'self'

get_collections_list is a classmethod, but it seems like it's not meant to be?

pystac-client/pystac_client/client.py

Lines 155 to 160 in 77d95a2

	@classmethod
	def get_collections_list(self):
	"""Gets list of available collections from this Catalog. Alias for get_child_links since children
	of an API are always and only ever collections
	"""
	return self.get_child_links()

Version: 0.1.1