Overlayer broken with DocumentDimension not subscritable

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TypeError Traceback (most recent call last)
Cell In[45], line 12
9 document_dimension:DocumentDimensions = DocumentDimensions(doc_width=image.size[0], doc_height=image.size[1])
10 overlay=[Textract_Types.WORD, Textract_Types.CELL]
---> 12 bounding_box_list = get_bounding_boxes(textract_json=doc, document_dimensions=document_dimension, overlay_features=overlay)

File ~/anaconda3/envs/python3/lib/python3.10/site-packages/textractoverlayer/t_overlay.py:103, in get_bounding_boxes(textract_json, overlay_features, document_dimensions)
101 page_number: int = 0
102 for page in doc.pages:
--> 103 page_dimensions = document_dimensions[page_number]
104 page_number += 1
105 if (Textract_Types.WORD in overlay_features or Textract_Types.LINE in overlay_features):

TypeError: 'DocumentDimensions' object is not subscriptable