--- /dev/null
+# void http\Client\Curl\User::wait([int $timeout_ms = null])
+
+Wait/poll/select (block the loop) until events fire.
+
+> ***NOTE:***
+> This method is called by http\Client::wait(), so it does not need to have an actual implementation if http\Client::wait() is never called.
+
+## Params:
+
+* Optional int $timeout_ms = null
+ Block for at most this milliseconds.