Creates a 'promise' from an 'recvAio' object.
# S3 method for class 'recvAio'
as.promise(x)
A 'promise' object.
This function is an S3 method for the generic as.promise
for class
'recvAio'.
Requires the promises package.
Allows a 'recvAio' to be used with the promise pipe %...>%
, which schedules
a function to run upon resolution of the Aio.