public WebhookBuilder setAvatar(InputStream avatar, String fileType) {
        delegate.setAvatar(avatar, fileType);
        return this;
    }
public WebhookBuilder setAvatar ( InputStream avatar , String fileType ) { delegate . setAvatar ( avatar , fileType ) ; return this ; }
Sets the avatar.

@param avatar The avatar to set.
@param fileType The type of the avatar, e.g. "png" or "jpg".
@return The current instance in order to chain call methods.