Indicates a validation failed, describing the failure with a contained error value.
the type of value describing a validation failure for this Fail
an error value describing the validation failure
Ands this Validation with another, passed, Validation.
The result of invoking this method will be this same Fail object. It will not execute the passed by-name.
the other validation to and with this one
the result of anding this Validation with the other, passed, Validation