new_contents: #
  
  """
  SignedData ::= SEQUENCE {
    version Version,
    digestAlgorithms DigestAlgorithmIdentifiers,
    contentInfo ContentInfo,
    certificates
      	[0] IMPLICIT ExtendedCertificatesAndCertificates
         OPTIONAL,
    Crls
      [1] IMPLICIT CertificateRevocationLists OPTIONAL,
    signerInfos SignerInfos }
  
  DigestAlgorithmIdentifiers ::=
    SET OF DigestAlgorithmIdentifier
  
  ContentInfo ::= SEQUENCE {
    contentType ContentType,
    content
      [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL }
  
  ContentType ::= OBJECT IDENTIFIER
  
  SignerInfos ::= SET OF SignerInfo
  """
  signeddata = 
  from pyasn1.type import univ, namedtype, tag
  class SignedData(univ.Sequence):
      Version = namedtype.NamedTypes(namedtype.NamedType('version', univ.Integer())
      digestAlgorithms
  
  
subject: Create authenticode.py