A bug occurs when running the example code in format section

[y-swim]

Describe the bug
A bug occurs when running the example code in format section because 'latestBy' parameter can only be used when 'format=json' or 'format=xml'.

To Reproduce
Steps to reproduce the behaviour:

1. Go to Developers guide
2. Scroll down to 'format'
3. Run the example code of format
4. See error

Expected behaviour
Return json, xml and csv

Screenshots

Additional context
Removing "latestBy": "cumCasesByPublishDate" on line 25 fixed the problem.