nsIWebServiceProxy in Firefox 1.5

 The collection of interfaces related to this service proxy. This
 will include the primary interface implemented by the service
 proxy as well as any listener or complex type interfaces required
 for method parameters and return values.
 NOTE: only interesting from JavaScript.

 PR_TRUE if the service proxy methods represent an asynchronous
 calling convention. PR_FALSE if the methods are synchronous.

 An enumerator that returns the set of pending calls for the
 service proxy. Each call is an instance of the 
 <code>nsIWebServiceCallContext</code> interface.

 @see nsIWebServiceCallContext

 The WSDL port that this service proxy represents.

 @see nsIWSDLPort

 The name of the primary async listener interface for this proxy. 
 This will be null if this is not an async proxy.

 The name of the primary interface for this proxy. This may or may not be
 the async version depending on whether or not this is an async proxy.

 The qualifier used for interface names related to
 this service proxy.