+ """PERF protocol client
+
+ Implements the client side of the PERF protocol; see pdm.srv.perf
+ for details on the protocol and its functionality.
+
+ This client class implements functions for finding PERF objects on
+ the server, and returns, for each server-side object looked up, a
+ proxy object that mimics exactly the PERF interfaces that the
+ object implements. As the proxy objects reference live objects on
+ the server, they should be released when they are no longer used;
+ they implement a close() method for that purpose, and can also be
+ used in `with' statements.
+
+ See pdm.srv.perf for details on the various PERF interfaces that
+ the proxy objects might implement.
+ """