Enum fields not encoded / decoded correctly

Hello,

when I was trying to decode Result-Code / Experimental-Result-Code / Inband-Security-Id I sow that the were not decoded in response as string. They stayed as integer. The source of that decoding issue is that decoder doesn't recognize AVP fields marked with <avp ... contenttype="Enumerated" ...> only <avp ... type="Enumerated" ...>

Example: When setting enum avp value it should be possible to set as enum string like this: Avp("Inband-Security-Id", "TLS")

<avp code="299" contenttype="Enumerated" mandatory-flag="must" may-encrypt="no" name="Inband-Security-Id" protected-flag="may" sect="RFC 3588 sect 6.10 79f" type="Unsigned32" vendor-flag="mustnot">
      <enum value="0">NO_INBAND_SECURITY</enum>
      <enum value="1">TLS</enum>
</avp>

**For analysis: **

1. to forbid in request Avp("Inband-Security-Id", 1) because it should expect enum text, not integer value
2. or to allow in request Avp("Inband-Security-Id", 1) but to internally validate against enum list

• response decoder should always decode as Avp("Inband-Security-Id", "TLS")