Error in python script

[boriken72]

I was attempting to use the code but when it runs it errors out at this line:

col_defs = monday.utils.get_col_defs(conn, board_id)

Traceback (most recent call last):
File "c:\Users\juan\Documents\Programming\monday3.py", line 75, in
col_defs = monday.utils.get_col_defs(conn, board_id)
AttributeError: module 'monday.utils' has no attribute 'get_col_defs'

another thing to point out is that 'row' in line 85 is defined as a dictionary and then there is an attempt to append to the dictionary in line 87 - but dictionary does not have a method of 'append', what is the intent here??