* Detach live stamping from a CodeCell (cleanup listeners/observers).

Returns True when Mercury is started as the Mercury Standalone App, and False when imported as JupyterLab extension.

Replace message content entirely. Exactly one content type must be provided. Parameters ---------- markdown

* One-shot stamp of what currently exists in the output area.

Main entry point: normalize many possible input types to list[dict].

Create and display a date input widget. Values use the browser-native ISO date format: ``YYYY-MM-DD``.

Create and display a date range input widget. ``value`` is stored as ``["YYYY-MM-DD", "YYYY-MM-DD"]``.

Create and display a time input widget. Values use browser-native ``HH:MM`` or ``HH:MM:SS`` strings.

Inject CSS for MLJAR Columns (theme-aware).

Normalize dict input into list[dict]. Supported shapes: - column-wise: {col: [v1, v2, ...]} - row-wise: {row_key: {col

* Internal: Outputs change handler

Safely parse and validate Mercury output

Return a simple, stable string for hashing.

Return posix path for the shadow folder next to the notebook: e.g. for 'folder/plots.ipynb' => 'folder/.mercury_sessions'

Convert markdown to HTML if possible; otherwise use <pre>.

* Read the inline Jupyter page config JSON. * Throws if the element does not exist or contains invalid JSON.

Return all values for a given URL key.

Scan `notebooks_dir` (default: current directory) for .ipynb files and return a list of dicts with: - name - description

* Place a code cell's output area into the appropriate panel * based on its MERCURY_MIMETYPE metadata or an explicit override. * Keeps widgets o

Optional helper if you want a hard reset