The list of users to add as participants in the call. users is a JSON array (formatted as a string) containing information for each user. Each element must include a `slack_id`. For example: `[{"slack_id": "U1H77"}]` or `[{"slack_id": "U1H77"}, {"slack_id": "U2ABC123"}]`.
Observable output
data
Required
Data from the action execution
errorstring
Error if any occurred during the execution of the action
successfulboolean
Required
Whether or not the action execution was successful or not