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: table_metadata.rb
    path of file: ./repos/stackneveroverflow/vendor/bundle/ruby/2.3.0/gems/activerecord-5.0.3/lib/active_record
    
    the code of the file until where you have to start completion: module ActiveRecord
  class TableMetadata # :nodoc:
    delegate :foreign_type, :foreign_key, to: :association, prefix: true
    delegate :association_primary_key, to: :association

    def initialize(klass, arel_tabl
    
    def resolve_column_aliases(hash)
      # This method is a hot spot, so for now, use Hash[] to dup the hash.
      #   https://bugs.ruby-lang.org/issues/7166
      new_hash = Hash[hash]
      hash.each do |key, _|
        if (key.is_a?(Symbol)) && klass.attribute_alias?(key)
          new_hash[klass.attribute_alias(key)] = new_hash.delete(key)
        end
      end