public OpenApiConverter classLoader(ClassLoader classLoader) {
        this.classLoader = classLoader;
        return this;
    }
Sets a {@link ClassLoader} to use to discover {@link JsonSchemaMapper},
{@link OpenApiMapper}, and {@link OpenApiProtocol} service providers
through SPI.

<p>The {@code OpenApiConverter} will use its own ClassLoader by default.

@param classLoader ClassLoader to use.
@return Returns the OpenApiConverter.
smithy-openapi/src/main/java/software/amazon/smithy/openapi/fromsmithy/OpenApiConverter.java