Getting to textitems of a particular page without iterating docling document

I want to access only textitems that a particular page of a document has without iterating through all the text items present in docling document.texts
Is there any way to do this?

If not then is there a way to instruct docling to use pymupdf TOC for identifying heading and there appropriate levels ?
Don't recommend any library like docling hierarchy as it postprocesses the docling document.