foo.rb

class SomeWrapperClass
  attr_accessor :importer, :start_time

  def initialize(file)
    @importer = DataWarehouseImporter.new(file)
    @start_time = Time.zone.now
    @importer.do_shit
    handle_updated_records
  end

  def handle_updated_records
    handle_updated_block_code
    #handle_change_in_tier_status
    #handle_credit_line_adjustment
  end

  def handle_updated_block_code
    bc_updates = get_updates_for('block_code')
    bc_updates.each do |att|
      fr = att.fiserv_record
      ca = fr.credit_account
      ca.handle_block_code(att.to_s)
    end
  end

  def get_updates_for(name)
    FiservAttribute.since(@start_time).for_name(name)
  end
end