Wraps the specified block in an operation and adds it to the receiver.
Mac Catalyst 13.0+Beta
The block to execute from the operation. The block takes no parameters and has no return value.
This method adds a single block to the receiver by first wrapping it in an operation object. You should not attempt to get a reference to the newly created operation object or determine its type information.
A Boolean value indicating whether the operation is currently executing.
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