Library is inconsistent with its documentation and some methods just do not work

Start with GhApi.get_content in ghapi/core.py and compare its get_content(path) signature with repos.get_content(owner, repo, path, ref) in the linked documentation. Reproduce both examples, then verify that the public signature, documented usage, and supported content lookup behavior agree without the shown KeyError or TypeError.

from ghapi.all import GhApi
gh_api = GhApi()

gh_api.get_content("https://github.com/Ark-kun/pipeline_components/blob/47f3621344c884666a926c8a15d77562f1cc5e0a/components/XGBoost/Train/component.yaml")

KeyError                                  Traceback (most recent call last)
<ipython-input-10-f6314c774e4a> in <module>
----> 1 gh_api.get_content("https://github.com/Ark-kun/pipeline_components/blob/47f3621344c884666a926c8a15d77562f1cc5e0a/components/XGBoost/Train/component.yaml")

/opt/conda/lib/python3.7/site-packages/ghapi/core.py in get_content(self, path)
    222 @patch
    223 def get_content(self:GhApi, path):
--> 224     res = self.repos.get_content(path)
    225     return base64.b64decode(res.content)
    226 

/opt/conda/lib/python3.7/site-packages/ghapi/core.py in __call__(self, headers, *args, **kwargs)
     61         route_p,query_p,data_p = [{p:kwargs[p] for p in o if p in kwargs}
     62                                  for o in (self.route_ps,self.params,d)]
---> 63         return self.client(self.path, self.verb, headers=headers, route=route_p, query=query_p, data=data_p)
     64 
     65     def __str__(self): return f'{self.tag}.{self.name}{signature(self)}\n{self.doc_url}'

/opt/conda/lib/python3.7/site-packages/ghapi/core.py in __call__(self, path, verb, headers, route, query, data)
    107             for k,v in route.items(): route[k] = quote(str(route[k]))
    108         res,self.recv_hdrs = urlsend(path, verb, headers=headers or None, debug=self.debug, return_headers=True,
--> 109                                      route=route or None, query=query or None, data=data or None)
    110         if 'X-RateLimit-Remaining' in self.recv_hdrs:
    111             newlim = self.recv_hdrs['X-RateLimit-Remaining']

/opt/conda/lib/python3.7/site-packages/fastcore/net.py in urlsend(url, verb, headers, route, query, data, json_data, return_json, return_headers, debug)
    204             return_json=True, return_headers=False, debug=None):
    205     "Send request with `urlrequest`, converting result to json if `return_json`"
--> 206     req = urlrequest(url, verb, headers, route=route, query=query, data=data, json_data=json_data)
    207     if debug: debug(req)
    208 

/opt/conda/lib/python3.7/site-packages/fastcore/net.py in urlrequest(url, verb, headers, route, query, data, json_data)
    187 def urlrequest(url, verb, headers=None, route=None, query=None, data=None, json_data=True):
    188     "`Request` for `url` with optional route params replaced by `route`, plus `query` string, and post `data`"
--> 189     if route: url = url.format(**route)
    190     if query: url += '?' + urlencode(query)
    191     if isinstance(data,dict): data = (json.dumps if json_data else urlencode)(data).encode('ascii')

KeyError: 'repo'

This does not work either:

gh_api.get_content("Ark-kun", "pipeline_components", "/components/XGBoost/Train/component.yaml", "47f3621344c884666a926c8a15d77562f1cc5e0a")

ipython-input-12-c8d271a17611> in <module>
----> 1 gh_api.get_content("Ark-kun", "pipeline_components", "/components/XGBoost/Train/component.yaml", "47f3621344c884666a926c8a15d77562f1cc5e0a")

TypeError: get_content() takes 2 positional arguments but 5 were given

Parameters:

help(gh_api.get_content)
# get_content(path) method of ghapi.core.GhApi instance

but in documentation:

repos.get_content(owner, repo, path, ref): Get repository content