Function defineSchema

defineSchema<
T extends ZodType<unknown, unknown, $ZodTypeInternals<unknown, unknown>>,
>(
schema: T,
): T & { is(value: unknown): value is output<T> }
Attach a type guard directly to a Zod schema.

This keeps the runtime validator, the inferred TypeScript type, and the runtime type guard derived from the same source.
Type Parameters
- T extends ZodType<unknown, unknown, $ZodTypeInternals<unknown, unknown>>
Parameters
- schema: T
  Zod schema to extend
Returns T & { is(value: unknown): value is output<T> }
The original schema augmented with an is guard
Example
```
const MySchema = defineSchema(z.string());
if (MySchema.is(value)) { // value is string
}
```
- Defined in utils/define-schema.ts:15