The way to automate CLI signin in the powershell script

Hello!
I'm trying to automate CLI signin in the PowerShell script without having password prompt, but failing to do this..
I checked existing topics, but solutions described there do not work for me (or I'm doing something wrongly).
E.g. from this article: https://1password.community/discussion/90742/cli-authentication-without-intervention
I'm trying straightforward to execute simply test.ps1 file with this:

$PWD = "my_password"
Invoke-Expression $($PWD | op signin )


and get an error (executed with admin permissions):

C:\projects\op> .\test.ps1
[ERROR] 2023/04/10 15:23:49 (401) Unauthorized: You aren't authorized to perform this action.
Invoke-Expression : Cannot bind argument to parameter 'Command' because it is null.
At C:\projects\op\test.ps1:11 char:19
Invoke-Expression $($PWD | op signin )


Could you please guide me to the best way of my task accomplishment?
Thank you in advance!

1Password Version: CLI
Extension Version: 2.14.0
OS Version: Win 10
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