What is the wiki markup syntax for the content by label macro?

[Garmin]

I'd like to embed some information in my sidebar based on a label, but the sidebar only accepts wiki markup syntax.

I'd attempted this:

{ContentByLabel:label=tool}

But receive the following error:

Error formatting macro: ContentByLabel: com.atlassian.confluence.api.service.exceptions.BadRequestException: Could not parse cql : null

[Travis Bennett]

Apologies, I was previously logged in under the wrong account.  But I did put together the right syntax:

{ContentByLabel:cql=label="tool"|showLabels=False|showSpace=False}