Changed the RuntimeZodType from any to unknown

Author: sdangol

packages/batch/src/parser.ts

@@ -13,7 +13,7 @@ import type {
  *
  * @param schema - The schema to check
  */
-const isZodSchema = (schema: StandardSchemaV1): schema is RuntimeZodType =>
+const isZodSchema = (schema: StandardSchemaV1) =>
   schema['~standard'].vendor === SchemaVendor.Zod;
 
 /**
@@ -40,20 +40,23 @@ const createExtendedSchema = async (options: {
       const { JSONStringified } = await import(
         '@aws-lambda-powertools/parser/helpers'
       );
+      // @ts-expect-error - we know it's a Zod schema due to the runtime check earlier
       schema = JSONStringified(innerSchema);
       break;
     }
     case 'base64': {
       const { Base64Encoded } = await import(
         '@aws-lambda-powertools/parser/helpers'
       );
+      // @ts-expect-error - we know it's a Zod schema due to the runtime check earlier
       schema = Base64Encoded(innerSchema);
       break;
     }
     case 'unmarshall': {
       const { DynamoDBMarshalled } = await import(
         '@aws-lambda-powertools/parser/helpers/dynamodb'
       );
+      // @ts-expect-error - we know it's a Zod schema due to the runtime check earlier
       schema = DynamoDBMarshalled(innerSchema);
       break;
     }

packages/batch/src/types.ts

@@ -248,13 +248,11 @@ type ParsedRecord<TRecord, TPayload, TOldPayload = TPayload> = TRecord extends {
  * Parts of the parser integration within BatchProcessor rely on Zod for schema transformations,
  * however some other parts also support other Standard Schema-compatible libraries.
  *
- * To avoid forcing a direct dependency on Zod, we use `any` here, which is not ideal but necessary.
+ * To avoid forcing a direct dependency on Zod, we use `unknown` here, which is not ideal but necessary.
  *
  * The vendor is checked at runtime to ensure Zod is being used when required using `StandardSchemaV1['~standard'].vendor`.
- *
- * biome-ignore lint/suspicious/noExplicitAny: using `any` to avoid direct dependency on 'zod'
  */
-type RuntimeZodType = any;
+type RuntimeZodType = unknown;
 
 export type {
   BatchProcessingOptions,