private void isNameUsed() throws IOException, DecoderException {
		String name = paramDecoder.readString(ATTRIB_NAME);
		long startId = paramDecoder.readUnsignedInteger(ATTRIB_FIRST);
		long stopId = paramDecoder.readUnsignedInteger(ATTRIB_LAST);
		boolean res = callback.isNameUsed(name, startId, stopId);
		write(query_response_start);
		write(string_start);
		write(res ? 't' : 'f');
		write(string_end);
		write(query_response_end);
	}
Send a command to the decompiler with one parameter and return the result
@param command is the command string
@param param1 is the parameter encoded as a string
@param response is the result accumulator
@throws IOException for problems with the pipe to the decompiler process
@throws DecompileException for problems executing the command
Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/DecompileProcess.java