useForm submit "method" type

[guihigashi]

I was writing a FormComponent in order to use it for both creating and editing a resource. So instead of destructure post and put from useForm, I got submit to call it with first parameter being the method as string. However, in InertiaFormProps, submit's type is (method: () => void, .... So I was wondering, why is method typed as () => void, instead of string or even get | post | put | patch | delete?