Every schema that extends BaseSchema supports .not(), .required(), .predicate(), .validate(), .validateWithCorrectType().
| method | explanation |
|---|---|
| not(v1, v2, v3, ...) | values must not be equal to v1, v2, v3, ... |
| required() | values must be of the type of the schema - *Schema.validateType(value) must return true |
| predicate((value) => bool) | values must return true for the specified predicate function |