Update autoemulate/core/compare.py

Co-authored-by: Sam Greenbury <[email protected]>

Author: radka-j

autoemulate/core/compare.py

@@ -626,7 +626,7 @@ def plot(  # noqa: PLR0912, PLR0915
             The ranges of the output features to consider for the plot. Ranges are
             combined such that the final subset is the intersection data within
             the specified ranges. Defaults to None.
-        error_style: str
+        error_style: Literal["bars", "fill"]
             The style of error representation in the plots. Can be "bars" for error
             bars or "fill" for shaded error regions. Defaults to "bars".
         figsize: tuple[int, int] | None