You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: associations.rb
    path of file: ./repos/graphiti/lib/graphiti/adapters/persistence
    
    the code of the file until where you have to start completion: module Graphiti
  module Adapters
    module Persistence
      module Associations
        def process_belongs_to(persistence, attributes)
          parents = [].tap do |processed|
            persistence.iterate(only: [:polymorphic_belongs_t
    
        def process_has_many(persistence, caller_model)
          [].tap do |processed|
            persistence.iterate(except: [:polymorphic_belongs_to, :belongs_to]) do |x|
              update_foreign_key(caller_model, x[:attributes], x)

              x[:object] = x[:resource]
                .persist_with_relationships(x[:meta], x[:attributes], x[:relationships], caller_model, x[:foreign_key])

              processed << x
            end
          end
        end