Declines invitations sent to the current member account by Amazon Web Services accounts specified by their account IDs.
See https://www.paws-r-sdk.com/docs/guardduty_decline_invitations/ for full documentation.
guardduty_decline_invitations(AccountIds)
[required] A list of account IDs of the Amazon Web Services accounts that sent invitations to the current member account that you want to decline invitations from.