class Aws::Query::Handler

def build_request(context)
  context.http_request.http_method = 'POST'
  context.http_request.headers['Content-Type'] = CONTENT_TYPE
  param_list = ParamList.new
  param_list.set('Version', context.config.api.version)
  param_list.set('Action', context.operation.name)
  if input_shape = context.operation.input
    apply_params(param_list, context.params, input_shape)
  end
  context.http_request.body = param_list.to_io
end