public FunctionDescription containsDescription(String fname, long address,
			ExecutableRecord exe) {
		FunctionDescription fdesc = new FunctionDescription(exe, fname, address);
		FunctionDescription res = funcrec.floor(fdesc);
		if (res == null || (!res.equals(fdesc))) {
			return null;
		}
		return res;
	}
Find a function (within an executable) by its name and address (both must be provided)
If the function doesn't exist, null is returned, no exception is thrown
@param fname - the name of the function
@param address - the address of the function
@param exe - the executable (possibly) containing the function
@return a FunctionDescription or null
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/description/DescriptionManager.java