Convenience method to get the configured URL that the client is using.

When debugging an error while using the client, the cause can be a simple misconfiguration of the client.

In this instance being able to ask the client what host and/or url its making a query too would be super useful. The url is normally pretty trivial to step down into find. But I've found it quite difficult to find the base host url that is used.

The issue names no files or tests; start by locating the client configuration and the code that builds its request URL. Done means a public convenience method exposes the configured host or URL and coverage verifies the debugging use case described.

Written by the indexing model from the issue text.