toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
return 'CheckoutResponse{message: $message,reference: $reference, status: $status, method: $method, name: $name, verify: $verify, bvn: $bvn, nin: $nin, verify: $confidence_level, }';
}