DisallowedNullValueException class Null safety
Exception thrown if there are keys with disallowed
null values in a JSON
map that was provided during deserialization.
- hashCode → int
The hash code for this object. [...]
- map → Map
The source Map that the unrecognized keys were found in.
- message → String
A human-readable message corresponding to the error.
- runtimeType → Type
A representation of the runtime type of the object.