I am trying to create/update a record based on button click.

lines = [line.analytic_tag_ids.id for line in self.line_ids]
line1 = lines[0]

for index,line in enumerate(lines):
   # print('line1', lines[line1])
    lines[line] = lines[0]
    print(new1)
    for rec in self.line_ids:
        rec.write({'analytic_tag_ids':lines[0]})
Here is the code but it isnt the right one as it says int in my list cannot be given as a value for analytic tag. Can u pleasegive me an example on how to use list data in write method