docs: def create(recipients, data, cipher, flags=0):
          """
          Creates and encrypts message
          @param recipients - list of X509 objects
          @param data - contents of the message
          @param cipher - CipherType object
          @param flags - flag
          """
          recp = StackOfX509(recipients)
          bio = Membio(data)
          cms_ptr = libcrypto.CMS_encrypt(recp.ptr, bio.bio, cipher.cipher,
                                          flags)
          if cms_ptr is None:
              raise CMSError("encrypt EnvelopedData")
          return EnvelopedData(cms_ptr)