key | string | Stable upstream id of the grouping entity (channel id, CIK, series id, …). |
label? | string | Optional word for what kind of thing this feed is — “Channel”, “Show”, “Company”, “Series” — so a client can label the grouping (“grouped by Company”) rather than the generic “feed”. |
name | string | Human-readable feed name (e.g. “MKBHD”, “Apple Inc.”, “Real GDP”). |