public boolean verboseResponses() {
        return verboseResponses;
    }
Returns whether the verbose response mode is enabled. When enabled, the service response will contain
the exception type and its full stack trace, which may be useful for debugging while potentially
insecure. When disabled, the service response will not expose such server-side details to the client.

@see VirtualHost#verboseResponses()
core/src/main/java/com/linecorp/armeria/server/ServiceConfig.java