WithoutValue creates a [FormBuilder] that removes a field.

WithValue creates a [FormBuilder] for a certain field.

AtValue is a [L.Lens] that focusses on first value in form fields.

AtValues is a [L.Lens] that focusses on the values of a form field.

Default is the default form field.

Monoid is the [M.Monoid] for the [Endomorphism].

ValuesMonoid is a [M.Monoid] to concatenate [url.Values] maps.