read_idf takes an EnergyPlus Input Data File (IDF) as input and returns an
Idf object. For more details on Idf object, please see Idf class.
read_idf(path, idd = NULL)A path to an EnergyPlus IDF file or a string that can be parsed as
an IDF. The file extension does not matter. So models stored in TXT
format are still able to correctly be parsed.
An Idf object.