instance method from_pairs

# File actionpack/lib/action_dispatch/http/param_builder.rb, line 34
    def from_pairs(pairs, encoding_template: nil)
      params = make_params

      pairs.each do |k, v|
        if Hash === v
          v = ActionDispatch::Http::UploadedFile.new(v)
        end

        store_nested_param(params, k, v, 0, encoding_template)
      end

      params
    rescue ArgumentError => e
      raise InvalidParameterError, e.message, e.backtrace
    end