Startup script that reads features in file

Hello,

I am trying to develop a startup python script, that will look at an incoming file and list the feature types that are within that file. Then compare against another list of mandatory feature types. Essentially I would like to make sure that required feature types exist in the file. I am fairly new to Python, and still learning, but any guidance would be helpful.

import fmeobjects

import fme

class FMEFeature(object):

value = fme.macroValues['SourceDataset_AUTOCAD_OD']

fme.getFeatureType(value)

#unsure what to do next

Thank you!