public Object call(Callable<?> callable) {
            try {
                return handleSupplier.invokeInContext(extensionContext, callable);
            } catch (Exception x) {
                throw Sneaky.throwAnyway(x);
            }
        }
Invoke a callable in the extension context. The extension context wraps the method that
gets executed and a full customized configuration (both instance and method specific
configuration customizers have been applied). The extension context is registered with
the underlying handle to configure the handle when calling the {@link Callable#call()} method.
<br>
This method is used by the generated classes from the <code>jdbi3-generator</code> annotation
processor to execute predefined {@link ExtensionHandler} instances.

@param callable The callable to use
@return The result of the extension handler invocation
core/src/main/java/org/jdbi/v3/core/extension/ExtensionMetadata.java