Support for timezone in SignalFlow execution

[hubertgrzeskowiak]

https://dev.splunk.com/observability/reference/api/signalflow/latest#endpoint-start-signalflow-computation

SignalFlow execute endpoint supports setting a timezone, which is very relevant when aggregating by days, weeks, etc.

It would be great if the library also supported that.

[hubertgrzeskowiak]

Workaround I am using:

flow = sfx.signalflow(TOKEN)

def _get_params(**kwargs):
    kwargs["timezone"] = "Australia/Sydney"
    return dict((k, v) for k, v in kwargs.items() if v is not None)

flow._get_params = _get_params
flow.execute(...)

[hubertgrzeskowiak]

For this fix I reckon it would be enough to add another param timezone to execute.

[mpetazzoni]

@hubertgrzeskowiak indeed; would you be able to send a PR for this? Thanks!