ACS Node.js SDK connection pool default max sockets limit

The Appcelerator Cloud Services Node.js SDK documents a pool option for controlling max sockets per host, but the public API reference does not state the default value when the option is omitted.

Source inspection for Titanium SDK 7.5.0 GA indicates a fallback to a pool size of 5 when no explicit pool configuration is provided. The documented capability is the pool option itself, while the default behavior and its stability across SDK versions and underlying HTTP client implementations remain unspecified.

Clarifying the supported default is needed to size concurrent ACS API usage without relying on undocumented internals.

What is the documented default maxSockets for the ACS Node.js SDK when pool is unspecified? Is a fallback of 5 sockets in Titanium SDK 7.5.0 GA considered supported behavior? Does the pool semantics change with different underlying HTTP client versions?