Function includes

packages/zod/src/v4/classic/schemas.ts:411–413

(...args)

      return this.check((checks.regex as any)(...args));
    },
    includes(...args) {
      return this.check((checks.includes as any)(...args));
    },
    startsWith(...args) {
      return this.check((checks.startsWith as any)(...args));
    },