CopyFacets makes a copy of facets of the posting which are requested in param.Keys.

FacetFor returns Facet for given key and val.

SameFacets returns whether two facets are same or not.

Sorts And validates the facets.

TypeIDFor gives TypeID for facet.

TypeIDForValType gives TypeID for api.Facet_ValType.

ValFor converts Facet into types.Val.

ValTypeForTypeID gives api.Facet_ValType for given TypeID.