connection.getListData( set )

Extension of getListData that tries to combine calls to it into a single call. The calls are fulfilled by an underlying behavior's getListData implementation.

Waits for a configured time then tries to unify the sets requested during it. After unification, calls for the unified sets are made to the underlying getListData. Once the unified data has returned, the individual calls to getListData are resolved with a calculated subset of the unified data.