__all__ = ['CMS', 'CMSError', 'Flags', 'SignedData', 'EnvelopedData',
'EncryptedData']
+libcrypto.CMS_get0_type.restype = c_void_p
+libcrypto.CMS_get0_type.argtypes = (c_void_p,)
libcrypto.CMS_add1_cert.restype = c_int
libcrypto.CMS_add1_cert.argtypes = (c_void_p, c_void_p)
libcrypto.CMS_decrypt.restype = c_int