Multiple Event Triggers on Lambda

Is it possible to multiple event triggers on a lambda?
```
@app.schedule('cron(0/5 * * * ? *)')
@app.schedule('cron(0/3 * * * ? *)')
def lambda_handlers(event, context):
pass
```
Something like this.

Start by investigating how the two @app.schedule decorators in the example are interpreted and how scheduled Lambda events are represented in Chalice. Determine the expected behavior for multiple cron triggers on one handler, including deployment and invocation semantics; the issue is complete when that behavior is clearly defined and supported or explicitly ruled out.

Written by the indexing model from the issue text.