Returns a list of the custom action targets in Security Hub in your account.
securityhub_describe_action_targets(ActionTargetArns, NextToken,
  MaxResults)A list of custom action target ARNs for the custom action targets to retrieve.
The token that is required for pagination.
The maximum number of results to return.
svc$describe_action_targets(
  ActionTargetArns = list(
    "string"
  ),
  NextToken = "string",
  MaxResults = 123
)