I want to request the account settings from the ACME server.
The ACME spec defines a flag for this operation (section “Account Creation”):
onlyReturnExisting (optional, boolean): If this field is present with the value “true”, then the server MUST NOT create a new account if one does not already exist. This allows a client to look up an account URL based on an account key.
Is there a Certbot option to set the flag?