Returns Insights that are not resolved by the user (A resolved Insight is an Insight that is no longer relevant to the user).
The "acknowledged" query parameter can be used to specify if only acknowledged or unacknowledged Insights should be returned.
(An Insight is said to be acknowledged, if it has been seen or interacted with by the user).
When the value of "acknowledged" is false, only unacknowledged Insights are returned.
When the value of "acknowledged" is true, only acknowledged Insights are returned.
When the "acknowledged" query parameter is not used, all unresolved Insights (acknowledged as well as unacknowledged) are returned.