core/com.tealium.prism.core.api.data/DataList/extract extract open override fun extract(jsonPath: JsonPath<JsonPath.Component.Index>): DataItem?Extracts a nested DataItem according to the given jsonPath.If any path component is not found, either missing or unexpected type, then null will be returned.ReturnThe required DataItem if available; else nullParametersjsonPathThe JsonPath describing how to access the variable.