Converts the future argument from rt_opts() into arguments that can be passed to stan.

create_future_rt(future = "latest", delay = 0)

## Arguments

future

A character string or integer. This argument indicates how to set future Rt values. Supported options are to project using the Rt model ("project"), to use the latest estimate based on partial data ("latest"), to use the latest estimate based on data that is over 50% complete ("estimate"). If an integer is supplied then the Rt estimate from this many days into the future (or past if negative) past will be used forwards in time.

delay

Numeric mean delay

## Value

A list containing a logical called fixed and an integer called from