protected Collection<? extends DBTraceReference> getReferencesBySymbolId(long id) {
		// NOTE: Must include register spaces, since this API is not public
		// Only accessed via Symbol, for which it makes sense to include ALL refs.
		return delegateCollection(allSpacesView, m -> m.getReferencesBySymbolId(id));
	}
Ensures that a "from" address is in memory

<p>
NOTE: To manage references from registers, you must use
{@link #getReferenceRegisterSpace(TraceThread, boolean)}, which requires a thread.

@param space the space of the address to check
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/symbol/DBTraceReferenceManager.java