c    NoneA signature was included in the request but it did not match the secret key which was providid to the handler. Usually points to a configuration error on either end.We were expecting a signed request but no signature was included. Such requests are rejected beause we don't want to accept requests from untrusted sources.The request looks valid but we failed to parse the payload. This could be because our parsing code is wrong, or because GitHub added a new event type which we don't handle yet.The incoming request is not well-formed. If that happens it means GitHub screwed something up, or changed the format of the request.@Optional key which is used to authenticate the incoming request..Action which is used to read the request body. GAction which is used to retrieve a particular header from the request. Action which is executed once we've processed all the information in the request. GitHub includes a unique UUID in each request.           github-webhook-handler-0.0.3GitHub.WebHook.HandlerErrorInvalidSignatureUnsignedRequest ParseErrorInvalidRequestHandler hSecretKeyhBodyhHeaderhAction runHandler toParseError