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: tree_spell_checker.rb
    path of file: ./repos/ruby-packer/ruby/lib/did_you_mean
    
    the code of the file until where you have to start completion: module DidYouMean
  # spell checker for a dictionary that has a tree

    
    def correct(input)
      plausibles = plausible_dimensions input
      return no_idea(input) if plausibles.empty?
      suggestions = find_suggestions input, plausibles
      return no_idea(input) if suggestions.empty?
      suggestions
    end