To use, enqueue strings in a Queue. ReaderRead will take the front
work string and output (work, work).
Args
container
An optional string. Defaults to "".
If non-empty, this reader is placed in the given container.
Otherwise, a default container is used.
shared_name
An optional string. Defaults to "".
If non-empty, this reader is named in the given bucket
with this shared_name. Otherwise, the node name is used instead.