Please help with command rclone config password

Hi,
I would like to use rclone config password as explained here:
https://rclone.org/commands/rclone_config_password/

command:
rclone config password < name > [< key > < value >]+ [flags]

example:
rclone config password myremote fieldname mypassword

unfortunately the wood must hide the tree… I am blind…

what should I use as < key > ? literaly “fieldname”?

I am trying to use this in a mega remote.
If I open the config file I see a line with pass= but I do not see any fieldname anyplace…

Thanks

After testing, I reply to myself… just for the record if anyone hits same stone…

for mega fieldname must be pass
for other remotes I do not know…

Looking in the config rclone config show remote is the best way to find out the arguments here, though you can see a comprehensive list with rclone config providers