Error validating serverless.yml

I'm trying to import a Defender serverless.yml config file to provision my Defender environment using the Serverless feature and getting the following error when I try to validate the serverless.yml file:

> sls info

Configuration error: 
     at 'functions.send-pause-tx.trigger.type': must be equal to one of the allowed values [schedule, webhook]
     at 'resources.Resources.sentinels.monitor-large-transfer': unsupported string format

:computer: Environment
Defender Serverless

:memo:Details
I set up everything in Defender manually first (contracts, relayer, autotask, and sentinel), then exported the serverless config via the Defender UI. Fwiw, I'm using the Defender workflow loosely based on the PauseGuardian.

:1234: Code to reproduce

service: defender-serverless-test-project
configValidationMode: error
frameworkVersion: '3'
provider:
  name: defender
  stage: ${opt:stage, 'dev'}
  stackName: mystack
  ssot: false
# custom:
  # config: ${file(secrets.${self:provider.stage}.yml)}
defender:
  key: "${env:TEAM_API_KEY}"
  secret: "${env:TEAM_API_SECRET}"
functions:
  send-pause-tx:
    name: Send Pause TX
    relayer: ${self:resources.Resources.relayers.astab-pauser}
    trigger:
      type: sentinel
    paused: false
    path: './scripts/autotasks/send-pause-tx'
resources:
  Resources:
    policies:
      policy-kZ:
        eip1559-pricing: true
      policy-E4:
        eip1559-pricing: true
        private-transactions: false
    contracts:
      astab-proxy:
        name: ASTAB-PROXY
        address: '0x1890'
        network: goerli
      astab-imp:
        name: ASTAB-IMP
        address: '0x1B7a'
        network: goerli
    relayers:
      astab-pauser:
        name: ASTAB-PAUSER
        network: goerli
        min-balance: '100000000000000000'
        policy: ${self:resources.Resources.policies.policy-kZ}
      test-one:
        name: Test  øne
        network: goerli
        min-balance: '100000000000000000'
        policy: ${self:resources.Resources.policies.policy-E4}
    notifications:
      unusually-large-tx-detected-on-acmestable:
        type: email
        name: 'Unusually Large TX Detected on ACMESTABLE '
        config:
          emails:
            - me@removed.com
        paused: false
    categories:
      low-severity:
        name: Low Severity
        description: A default category to be assigned for low risk monitors.
      high-severity:
        name: High Severity
        description: A default category to be assigned for high risk monitors.
      medium-severity:
        name: Medium Severity
        description: A default category to be assigned for medium risk monitors.
    sentinels:
      monitor-large-transfer:
        name: 'Monitor Large Transfer '
        type: BLOCK
        network: goerli
        addresses:
          - '0x1890...'
        paused: false
        autotask-trigger: ${self:functions.send-pause-tx}
        confirm-level: 1
        notify-config:
          timeout: 0
          message: |-
            **Defender Sentinel {{ sentinel.name }} Triggered**

            **Network**

            {{ sentinel.network }}

            **Block Hash**

            {{ blockHash }}

            **Transaction Hash**

            {{ transaction.transactionHash }}

            **Explorer Link**

            {{ transaction.link }}

            {{ matchReasonsFormatted }}
          channels:
            - >-
              ${self:resources.Resources.notifications.unusually-large-tx-detected-on-acmestable}
        conditions:
          event:
            - expression: value > 200000
              signature: Transfer(address,address,uint256)
plugins:
  - defender-serverless

It seems likely that this is the section of the config that is causing the error:

functions:
  send-pause-tx:
    name: Send Pause TX
    relayer: ${self:resources.Resources.relayers.astab-pauser}
    trigger:
      type: sentinel
    paused: false
    path: './scripts/autotasks/send-pause-tx'

However, 'sentinel' should be a valid type, correct?

Any ideas on how to resolve this?

It looks to be defined in the schema here. And also that there is already a PR for this: https://github.com/OpenZeppelin/defender-serverless/pull/45

To trigger autotask via sentinel pass trigger.type = webhook in to your autotask, sentinel in invalid option. However I agree that might be confusing.