Importing ecoinvent LCIA methods

[iamihgam]

After preparing the ecoinvent catalog, I am trying to import the ecoinvent LCIA methods. I have LCIA implementation file for version 3.8. I do not know which method to import:

from antelope_core.data_sources.ecoinvent_lcia import EcoinventLciaConfig

or

from antelope_core.providers.ecoinvent_lcia import EcoinventLcia

After importing , how do I add to existing catalog . An example code below like this ?!!!

ecia = EcoinventLCIAConfig('/path/.xls')
ecia.register_all.resources(cat)