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: migration_helpers.rb
    path of file: ./repos/gitlabhq/rubocop
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module RuboCop
  # Module containing helper methods
    
    def array_column?(node)
      node.each_descendant(:pair).any? do |pair_node|
        pair_node.child_nodes[0].sym_type? && # Searching for a RuboCop::AST::SymbolNode
          pair_node.child_nodes[0].value == :array && # Searching for a (pair (sym :array) (true)) node
          pair_node.child_nodes[1].type == :true # RuboCop::AST::Node uses symbols for types, even when that is a :true
      end
    end