fix(api-client): code hygiene

.pylintrc

@@ -673,7 +673,7 @@ dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_
 
 # Argument names that match this expression will be ignored. Default to name
 # with leading underscore.
-ignored-argument-names=_.*|^ignored_|^unused_
+ignored-argument-names=_.*|^ignored_|^unused_|^ctx$
 
 # Tells whether we should check for unused import in __init__ files.
 init-import=no