Array of ciphers offered by the client during the client hello.
@example TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 @example TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 @example ...
public const TLS_CLIENT_SUPPORTED_CIPHERS = 'tls.client.supported_ciphers';