def find_next_comment(buf, (row, col)):
    predicate = lambda line: LineProperties(line).is_header
    return _find_first(buf, (row, col), predicate, reverse=False)
Returns the row of the start of the next diffscuss comment, and the current
dataset/ETHPy150Open hut8labs/diffscuss/diffscuss/support/editor.py/find_next_comment