def quickening(*attr_list)
      include Quickening::Model
      class_attribute :duplicate_matchers, instance_writer: false
      self.duplicate_matchers = attr_list.map(&:to_sym) # Replace me in your models.
    end
def quickening(*attr_list)
      include Quickening::Model
      class_attribute :duplicate_matchers, instance_writer: false
      self.duplicate_matchers = attr_list.map(&:to_sym) # Replace me in your models.
    end
:nodoc:
 In your model file, call +quickening+ method at the class-level, providing
 it the columns you want the library to use as the basis for determining
 whether or not records are "duplicates."

 In its present form, this comparison/matching is handled in a decidedly
 black-and-white manner (although it's likely that many MySQL setups will
 forgive case-insentivity).

   class User < ActiveRecord::Base
     quickening %w(first_name last_name birthdate).map(&:to_sym)
     ..
   end

 ==== Parameters
 * +attr_list+ - a list of symbolized attributes referencing column names

 It is only expecting a list, not an Array which could get flattened. For
 now please remember this.