## core_ext/hash.rb line 89

  # ==== Returns
  # String:: This hash as a query string
  #
  # ==== Examples
  #   { :name => "Bob",
  #     :address => {
  #       :street => '111 Ruby Ave.',
  #       :city => 'Ruby Central',
  #       :phones => ['111-111-1111', '222-222-2222']
  #     }
  #   }.to_params
  #     #=> "name=Bob&address[city]=Ruby Central&address[phones]=111-111-1111222-222-2222&address[street]=111 Ruby Ave."