Function negative

packages/zod/src/v4/classic/schemas.ts:1036–1038

(params)

      return this.check(checks.gte(0, params));
    },
    negative(params) {
      return this.check(checks.lt(0, params));
    },
    nonpositive(params) {
      return this.check(checks.lte(0, params));
    },