conscrypt + grease ( how to access boringssl features? )

Hi.

I am unable to find any information about how to enable grease feature via conscrypt.

In BoringSSL its done via SSL_CTX_set_grease_enabled:
https://commondatastorage.googleapis.com/chromium-boringssl-docs/ssl.h.html#SSL_CTX_set_grease_enabled

In general - how can i access BoringSSL features via conscrypt and configure ssl connection the way i want?

Thanks.