/// <summary>
/// Creates a <see cref="TcpMessageCodec"/> instance.
/// </summary>
/// <param name="appProtocolVersion">The <see cref="AppProtocolVersion"/> to use
/// when encoding and decoding.</param>
/// <param name="trustedAppProtocolVersionSigners">The set of signers to trust when
/// decoding a message.</param>
/// <param name="differentAppProtocolVersionEncountered">A callback method that gets
/// invoked when an <see cref="AppProtocolVersion"/> by a <em>trusted</em> signer that is
/// different from <paramref name="appProtocolVersion"/> is encountered.</param>
/// <param name="messageTimestampBuffer">A <see cref="TimeSpan"/> to use as a buffer
/// when decoding <see cref="Message"/>s.</param>
public TcpMessageCodec(
AppProtocolVersion appProtocolVersion = default,
IImmutableSet <PublicKey>?trustedAppProtocolVersionSigners = null,
DifferentAppProtocolVersionEncountered?differentAppProtocolVersionEncountered = null,
TimeSpan?messageTimestampBuffer = null)
{
_codec = new Codec();
_messageValidator = new MessageValidator(
appProtocolVersion,
trustedAppProtocolVersionSigners,
differentAppProtocolVersionEncountered,
messageTimestampBuffer);
}