private void genFunctions(TaskMonitor monitor) {
		// TODO Auto-generated method stub
		
	}
Exports all root types in the list as ISF JSON.

@param monitor the task monitor
@return the resultant JSON object
@throws IOException        if there is an exception writing the output
@throws CancelledException if the action is cancelled by the user
Ghidra/Features/Sarif/src/main/java/sarif/export/func/ExtFunctionWriter.java