Prompt the user for a password to authenticate or read a protected key.
By default, this function automatically uses the most appropriate method
based on the user platform and front-end. Users or IDEs can override this
and set a custom password entry function via the askpass option.
Usage
askpass(prompt = "Please enter your password: ")
Arguments
prompt
the string printed when prompting the user for input.
Details
By default askpass() returns NULL in non-interactive sessions.
(These include knitr runs and testthat tests.)
If you want to force a password prompt in non-interactive sessions,
set the rlib_interactive option to TRUE: