update docs

jupyter_client/manager.py

@@ -303,9 +303,10 @@ async def _async_launch_kernel(self, kernel_cmd: t.List[str], **kw: t.Any) -> No
         """actually launch the kernel
 
         override in a subclass to launch kernel subprocesses differently
-        Note that provisioners can now be used to customize kernel environments.  The provisioner is in charge of setting up the connection
-        info and file using its `parent` object either in its `launch_kernel`
-        or `pre_launch` kernel methods.
+        Note that provisioners can now be used to customize kernel environments.
+        The provisioner is responsible for setting up our connection info
+        and file either in ``launch_kernel`` or ``pre_launch_kernel``.
+        See `KernelProvisionerBase.launch_kernel` for more information.
         """
         assert self.provisioner is not None
         await self.provisioner.launch_kernel(kernel_cmd, **kw)

jupyter_client/provisioning/provisioner_base.py

@@ -178,11 +178,6 @@ async def post_launch(self, **kwargs: Any) -> None:
 
         This method is called from `KernelManager.post_start_kernel()` as part of its
         start kernel sequence.
-
-        Note: Provisioners are expected to use the KernelManager (the `parent`
-        attribute) to handle connection info as needed either in this method or
-        in `pre_launch` so that the connection file is ready when the kernel
-        process needs access to it.
         """
         pass