name: assert
returns: void
description: Abort with an error message if `condition` evaluates to `false`.

notes:
  - The `message` argument is optional since 0.53.0 and defaults to print
    the condition statement.

posargs:
  condition:
    type: bool
    description: Abort if this evaluates to `false`

optargs:
  message:
    type: str
    description: The error message to print.