ConversationRelay.ReportInputDuringAgentSpeech is bool? but TwiML spec requires string enum

[BobbyGerace]

Describe the bug

The ReportInputDuringAgentSpeech property on Twilio.TwiML.Voice.ConversationRelay is declared as bool? and serialized as bool.ToString().ToLower() (see ConversationRelay.cs). This means the only attribute values the SDK can produce are "true" and "false".

However, the TwiML spec for this attribute defines it as a string enum with allowed values none, dtmf, speech, or any. Neither "true" nor "false" is a valid value, so the SDK cannot produce spec-compliant TwiML for this attribute and consumers have to fall back to SetOption("reportInputDuringAgentSpeech", "...") to bypass the typed property.

Code snippet

using Twilio.TwiML.Voice;

var relay = new ConversationRelay("wss://example.test/ws")
{
    ReportInputDuringAgentSpeech = true,
};

Console.WriteLine(relay.ToString());

Actual behavior

Output

<?xml version="1.0" encoding="utf-8"?>
  <ConversationRelay url="wss://example.test/ws" reportInputDuringAgentSpeech="true"></ConversationRelay>

Expected behavior

Per the TwiML spec for , the reportInputDuringAgentSpeech attribute is a string enum. The SDK should accept and emit those four spec values.

twilio-csharp version

7.13.6

Framework version

net10.0

Logs or error messages

No response

Additional context

No response