MicrosoftTeams.PostChannelAdaptiveCard not working?

[mflynn_marex]

Trying to use MicrosoftTeams.PostChannelAdaptiveCard but keep getting errors. The documentation (https://docs.microsoft.com/en-us/connectors/teams/#messageid) suggests there should be 2 arguments but looks like only accepts 1 when trying to use it.
Have tried various versions of this but not getting anywhere - example:

MicrosoftTeams.PostChannelAdaptiveCard
    (
        "{
            groupid: 'c3c43749-6d97-474e-a297-6d230843469d',
            'PostAdaptiveCardRequest/recipient/channelId': '19:358fa7b18e814d2e89769113685360d9@thread.tacv2',
            'PostAdaptiveCardRequest/messageBody': 
                {
                    'test'
                }
        }"
    )

  Anyone got any ideas? please?

[GuidoSconfienza]

I been struggling with the exact same thing. The Microsoft documentation for this connector is quite incomplete in my opinion

[walegado_gswc]

Has anyone found a solution to this?  I'm having the same issue.