Coming from a Python-in-Jupyter background, I notice that Tab works as you would expect (reveals all available methods/attributes), but Shift+Tab (signature hinting) does not. I could not find documentation on this. Is Shift+Tab not supported, or is my setup is incorrect?

Example:

type Foo struct {
    name string
    description string
}
func (f Foo) Qux(s string) string {
    return s
}
n := Foo{"bar", "baz"}

• n. + Tab Works as expected -> shows dropdown list: name, description
• n.Qux( + Tab Does not work as expected -> does not show anything and logs in Terminal: Unhandled shell message: inspect_request

My setup:

$ jupyter --version
4.4.0

$ uname -v
Darwin Kernel Version 17.7.0: Wed Apr 24 21:17:24 PDT 2019; root:xnu-4570.71.45~1/RELEASE_X86_64

$ brew list --versions zeromq
zeromq 4.3.1_1