Function useKeyword

docs/scripts/ajv-validator.js:3378–3382

(gen, keyword, result)

                    throw new Error("async keyword in sync schema");
            }
            function useKeyword(gen, keyword, result) {
                if (result === undefined)
                    throw new Error(`keyword "${keyword}" failed to compile`);
                return gen.scopeValue("keyword", typeof result == "function" ? { ref: result } : { ref: result, code: (0, codegen_1.stringify)(result) });
            }
            function validSchemaType(schema, schemaType, allowUndefined = false) {
                // TODO add tests
                return (!schemaType.length ||