code: def isPlantOrigin(taxid):
      
  
      assert isinstance(taxid, int)
  
      t = TaxIDTree(taxid)
      try:
          return "Viridiplantae" in str(t)
      except AttributeError:
          raise ValueError("{0} is not a valid ID".format(taxid))
docs: Given a taxid, this gets the expanded tree which can then be checked to
      see if the organism is a plant or not
  
      >>> isPlantOrigin(29760)
      True