[Raku PDF Project] / [PDF-Class Module]
/Action Subtype - Thread
[file specification] (Optional) The file containing the thread. If this entry is absent, the thread is in the current file.
[dictionary, integer, or text string] (Required) The destination thread, specified in one of the following forms:
[dictionary or integer] (Optional) The bead in the destination thread, specified in one of the following forms: