An asynchronous operation that can be cancelled.
The value of this operation is exposed as value. When this operation is cancelled, value won't complete either successfully or with an error. If value has already completed, cancelling the operation does nothing.
- isCanceled → bool
Whether this operation has been canceled before it completed.
- isCompleted → bool
Whether this operation completed before being canceled.
The value returned by the operation.
- hashCode → int
The hash code for this object. [...]
- runtimeType → Type
A representation of the runtime type of the object.
) → Stream< T>
- Creates a Stream containing the result of this operation. [...]
) → Future
- Cancels this operation. [...]
[T cancellationValue ]) → Future< T>
- Creates a Future that completes when this operation completes or when it's cancelled. [...]
Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
) → String
Returns a string representation of this object.