With the pageFilter element, you define which pages are considered training pages. This filter consists of a filter type and its value.

You can identify pages based on one or more of the following criteria:

Space name

The filter type PAGE_SPACE_NAME looks at the space name.
Example: You collect all your trainings in a space called Documents.

"pageFilter":
    {"type": "PAGE_SPACE_NAME", "value": "Documents"}

Space key

The filter type PAGE_SPACE_KEY looks at the key associated with the space. This can be useful if the name of a space can change or is not unique.
Example: The name of your space is still a draft, so you use the unique space key 'DOCS'

"pageFilter":
    {"type": "PAGE_SPACE_KEY", "value": "DOCS"}

Label

The filter type LABEL looks at labels you've attached to certain pages. This can be useful if you don't want to limit your training documents to one particular space.
Example: You give all your training pages the label 'training'.

"pageFilter":
    {"type": "PAGE_LABEL", "value": "training"}