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: weights.rb
    path of file: ./repos/picky/server/lib/picky/generators
    
    the code of the file until where you have to start completion: module Picky

  module Generators

    module Weights
      extend Helpers::Identification
      
      # Factory method to return a fitting
      # weight handling thing for the given thing.
      #  
      def self.from thing, index_name = nil, category_name = nil
  
    
      def self.from thing, index_name = nil, category_name = nil
        return Default unless thing

        if thing.respond_to? :weight_for
          thing
        elsif thing.respond_to? :to_int
          Logarithmic.new thing
        else
          raise <<-ERROR
weight options #{identifier_for(index_name, category_name)}should be either
* for example a Weights::Logarithmic.new, Weights::Constant.new(int = 0), Weights::Dynamic.new(&block) etc.
or
* an object that responds to #weight_for(amount_of_ids_for_token) => float
ERROR
        end