Limit available ACME challenges in the Vault ACME enabled PKI endpoint

Vault
1

Hi,
I went through docs on ACME in PKI secrets engine but I can’t find anywhere information on how one can limit the types of challenges used by the Vault ACME server. For example I’d like to disable HTTP-01 and TLS-ALPN-01 and only allow DNS-01.

Are there any options that one can tune on the mount point. Example:

> $ vault read sys/mounts/guardanet_corp/v1/ica2/v1/acme
> Key                        Value
> ---                        -----
> accessor                   pki_561b1add
> config                     map[allowed_response_headers:[Last-Modified Location Replay-Nonce Link] default_lease_ttl:129600 force_no_cache:false max_lease_ttl:31536000 passthrough_request_headers:[If-Modified-Since]]
> deprecation_status         supported
> description                PKI engine hosting Guardanet's Issuing CA2 for ACME - v1
> external_entropy_access    false
> local                      false
> options                    map[allowed-response-headers:Link passthrough-request-headers:If-Modified-Since]
> plugin_version             n/a
> running_plugin_version     v1.16.2+builtin.vault
> running_sha256             n/a
> seal_wrap                  false
> type                       pki
> uuid                       800e6143-bda8-601d-0c99-73fb0d787bc5

or options that can be set in the acme configuration of a pki mount, ex

$ vault read guardanet_corp/v1/ica2/v1/config/acme
Key                         Value
---                         -----
allow_role_ext_key_usage    false
allowed_issuers             [*]
allowed_roles               [*]
default_directory_policy    sign-verbatim
dns_resolver                n/a
eab_policy                  not-required
enabled                     true

Thank you in advance for your help