Update src/zarr/abc/numcodec.py

Co-authored-by: Max Jones <[email protected]>

Author: d-v-b

src/zarr/abc/numcodec.py

@@ -18,6 +18,9 @@ def get_config(self) -> Any: ...
 
     @classmethod
     def from_config(cls, config: Any) -> Self: ...
+        """
+        Instantiate codec from a configuration object.
+        """
 
 
 def _is_numcodec_cls(obj: object) -> TypeGuard[type[Numcodec]]: