@none_if_empty
def blobproperty_from_base64(value):
 decoded_value = base64.b64decode(value)
 return datastore_types.Blob(decoded_value)

@ none_if_empty def blobproperty_from_base64 ( value ) : decoded_value = base64 . b64decode ( value ) return datastore_types . Blob ( decoded_value )
return a datastore blob property containing the base64 decoded value .