A constant future is a future whose expression is a constant and therefore by definition is already resolved upon creation.
ConstantFuture(..., globals = TRUE, envir = emptyenv())Additional named elements of the future.
(optional) a logical, a character vector, or a named list
to control how globals are handled.
For details, see section 'Globals used by future expressions'
in the help for future().
The environment from where global objects should be identified.
An object of class ConstantFuture.