private static Map<String, String> formatHeaders(SimpleCodeWriter writer, Map<String, String> headers) {
        Map<String, String> newHeaders = new HashMap<>();
        for (Map.Entry<String, String> headerEntry : headers.entrySet()) {
            newHeaders.put(writer.format(headerEntry.getKey()), writer.format(headerEntry.getValue()));
        }
        return newHeaders;
    }
Defines a parameterized test case for malformed HTTP requests.

This class is *not* preferred for code generation - use {@link HttpMalformedRequestTestCase}
instances instead, retrieved from {@link HttpMalformedRequestTestsTrait#getTestCases()}.
smithy-protocol-test-traits/src/main/java/software/amazon/smithy/protocoltests/traits/ParameterizedHttpMalformedRequestTestCase.java