class ActiveRecord::Associations::Preloader::Association

def owner_key_name

Experimental RBS support (using type sampling data from the type_fusion project). 

def owner_key_name: () -> untyped

This signature was generated using 1 sample from 1 application.

The name of the key on the model which declares the association 
def owner_key_name
  reflection.join_foreign_key
end