Drone CLI won't convert .drone.star file to .drone.yml file

Drone Support
1

When I run drone starlark --source $FILE --stdout I get this error .drone.star:8:24: got string literal, want '}' and I’m using the example at the top of this page.

What am I doing wrong?

EDIT:
I’m using drone CLI version 1.2.1

2

For those trying to figure out the answer to this, the example is missing commas in the list:

def main(ctx):
    return {
        'kind': 'pipeline',
        'name': 'build',
        'steps': [
            {
                'name': 'build',
                'image': 'alpine',
                'commands': [
                    'echo hello world'
                ]
            }
        ]
    }

If you run this script with the same command above it will translate it into yaml.