Add kwargs arguments to prevent complaints

Author: tsmbland

docs/advanced-guide/extending-muse.ipynb

@@ -100,6 +100,7 @@
     "def consumption_zero(\n",
     "    market: Dataset,\n",
     "    capacity: DataArray,\n",
+    "    **kwargs,\n",
     "):\n",
     "    \"\"\"Current consumption.\"\"\"\n",
     "    result = (\n",
@@ -457,6 +458,7 @@
     "    sum_over: Optional[list[str]] = None,\n",
     "    drop: Optional[list[str]] = None,\n",
     "    rounding: int = 4,\n",
+    "    **kwargs,\n",
     "):\n",
     "    \"\"\"Current consumption.\"\"\"\n",
     "    result = (\n",

src/muse/outputs/sector.py

@@ -144,6 +144,7 @@ def capacity(
     market: xr.Dataset,
     capacity: xr.DataArray,
     rounding: int = 4,
+    **kwargs,
 ) -> pd.DataFrame:
     """Current capacity."""
     result = capacity.to_dataframe().round(rounding)