docs: private void parseProtocolVersion(Map<?, ?> props) {
          Object protocolVersionProperty = props.get(HttpConfigConstants.PROPNAME_PROTOCOL_VERSION);
          if (null != protocolVersionProperty) {
  
              String protocolVersion = ((String) protocolVersionProperty).toLowerCase();
              if (HttpConfigConstants.PROTOCOL_VERSION_11.equals(protocolVersion)) {
                  this.useH2ProtocolAttribute = Boolean.FALSE;
              } else if (HttpConfigConstants.PROTOCOL_VERSION_2.equals(protocolVersion)) {
                  this.useH2ProtocolAttribute = Boolean.TRUE;
  
              }
  
              if ((TraceComponent.isAnyTracingEnabled()) && (tc.isEventEnabled()) && this.useH2ProtocolAttribute != null) {
                  Tr.event(tc, "HTTP Channel Config: versionProtocol has been set to " + protocolVersion);
              }
  
          }
  
      }