NMAPinChange

@objc
public protocol NMAPinChange : NMAOperation

The object that can be used to change the PIN.

Usage example:

@interface NMAPinChangerImpl : NSObject<NMAPinChanger>

@end

@implementation NMAPinChangerImpl

- (void)changePinWithContext:(id<NMAPinChangeContext> _Nonnull)context handler:(id<NMAPinChangeHandler> _Nonnull)handler {
    [handler pinsWithOldPin:oldPin newPin:newPin];
}

@end

id<NMAPinChange> pinChangeOperation = [[client operations] pinChange];

[pinChangeOperation username:username];
[pinChangeOperation pinChanger:[[NMAPinChangerImpl alloc] init]];
[pinChangeOperation onSuccess:^{...}];
[pinChangeOperation onError:^(NMAPinChangeError * _Nonnull error) {...}];

[pinChangeOperation execute];