synchronized boolean isCheckedOut(int version) throws IOException {
		validate();
		for (long id : checkouts.keySet()) {
			ItemCheckoutStatus coStatus = checkouts.get(id);
			if (coStatus.getCheckoutVersion() == version) {
				return true;
			}
		}
		return false;
	}
Returns true if the specified version of the associated item is
checked-out.

@param version the specific version to check for checkouts.
Ghidra/Framework/FileSystem/src/main/java/ghidra/framework/store/local/CheckoutManager.java