Retrieved Panels

RetrievedPanel is a neutral data-layer result. It is not a core adapter and does not import or construct bagelquant-core objects.

It contains:

• kind: numeric_panel or category_panel
• data: a pandas DataFrame
• universe: a static asset sequence or dynamic membership DataFrame
• calendar: a sorted pandas DatetimeIndex
• dataset_name: stable input name
• metadata: provider, request, lineage, field, and calendar metadata

Downstream code can use those plain objects explicitly:

from bagelquant_core import Domain, Panel

domain = Domain(calendar=retrieved.calendar, universe=retrieved.universe)
panel = Panel.from_domain(
    retrieved.data,
    domain,
    name=retrieved.dataset_name,
    metadata=retrieved.metadata,
)

This preserves one-directional dependencies and keeps core responsible for Panel semantics.