Last tested: Mar 9, 2020
search_dashboards() endpoint doesn't return LookML dashboards at all, even if we input the space_id of lookml as a parameter. It will return a 200 in the interactive API docs, but the response body is an empty array
As a workaround, you should be able to use the
get_space api endpoint to achieve the result you want (e.g. something like
get_space('lookml'). The space that is returned should have a
dashboards field with all the lookml dashboards in it.