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: stash.rb
    path of file: ./repos/chewy/lib/chewy
    
    the code of the file until where you have to start completion: module Chewy
  # This class is the main storage for Chewy service data,
  # Now index raw specifications are stored in the `chewy_specifications`
  # index.
  # Journal entries are stored in `chewy_journ
    
      def self.for(*something)
        something = something.flatten.compact
        indexes = something.flat_map { |s| Chewy.derive_name(s) }
        return none if something.present? && indexes.blank?

        scope = all
        indexes.each do |index|
          scope = scope.or(filter(term: {index_name: index.derivable_name}))
        end
        scope
      end