Represents the "Doc" entry of the fdf javascript dictionary object.

It is an optional entry defined as part of the PDF 1.0 specification.

It contains an array which contains Elements.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 245, page 461.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 248, page 558.

The Doc entry is an array of alternating name-script pairs. Each pair adds one named script to the target document's JavaScript name tree, persisting as a document-level script after import.