public boolean containsKey(long key) {
		try (LockHold hold = LockHold.lock(lock.readLock())) {
			return keys.typedContains(key);
		}
		catch (IOException e) {
			adapter.dbError(e);
			return false;
		}
	}
Check if an object with the given key exists in the store

<p>
Using this is preferred to {@link #getObjectAt(long)} and checking for null, if that object
does not actually need to be retrieved.

@param key the key
@return true if it exists
Ghidra/Debug/ProposedUtils/src/main/java/ghidra/util/database/DBCachedObjectStore.java