Function defineValidationSchema

defineValidationSchema(
rules: (dependencies: any) => RouteValidationInput,
): (dependencies: any) => IValidationSchema
The imperative counterpart of a schema class: a plain function returning the rules.

It receives the same dependencies a class would get through its constructor, so it can reach the container's services too.
Parameters
- rules: (dependencies: any) => RouteValidationInput
  Returns what to validate, per source.
Returns (dependencies: any) => IValidationSchema
A schema instance.
Example
```
export const createUserSchema = defineValidationSchema(({ i18n }) => ({
  body: z.object({ email: z.string().email(i18n.t('validation.email')) })
}))
```