Documentation Typo: session duration expected 'string' type

[vantaboard]

Orb version: circleci/aws-ecs@3.2.0

I'm getting this error:

    Error calling workflow: 'build'
    Error calling job: 'verify-deployment'
    Error calling command: 'aws-cli/setup'
    Type error for argument session-duration: expected type: string, actual value: "3600" (type integer)

Expected behavior:

The expected behavior is accurate. The documentation uses an integer https://circleci.com/developer/orbs/orb/circleci/aws-ecs. Am I mistaken in thinking this is a typo?