module Metanorma::Utils::Array

def stringify_all_keys
  map do |v|
    case v
    when ::Hash, ::Array
      v.stringify_all_keys
    else
      v
    end
  end
end

def symbolize_all_keys
  map do |v|
    case v
    when ::Hash, ::Array
      v.symbolize_all_keys
    else
      v
    end
  end
end