@Override
    public Schema timestampShape(TimestampShape shape) {
        if (member.hasTrait(TimestampFormatTrait.ID)) {
            return schema;
        }

        // Uses an HTTP-date format by default.
        Schema original = context.getJsonSchemaConverter().convertShape(member).getRootSchema();
        Schema.Builder copiedBuilder = ModelUtils.convertSchemaToStringBuilder(original);
        return copiedBuilder.format(null).build();
    }
Creates an appropriate Schema for an input/output header parameters.

@param <T> Type of protocol trait to convert.
smithy-openapi/src/main/java/software/amazon/smithy/openapi/fromsmithy/protocols/HeaderSchemaVisitor.java