methylseg.utils.resolve_region_overlay_df

methylseg.utils.resolve_region_overlay_df(*, overlay_regions_df=None)

Normalize explicit region overlays for plotting helpers.

Parameters:

overlay_regions_df (DataFrame | None) – Optional region table to copy and pass through to plotting helpers.

Returns:

(overlay_df, overlay_label_col) where overlay_label_col is the region label column name used by downstream plotting code.

Return type:

tuple