Extract variables from a named list

Usage

extract_vars(
  x,
  ...,
  keep = FALSE,
  allow_nonexisting = FALSE,
  env = parent.frame()
)

x: A named list
...: The names of the variables named arguments are allowed to rename the variables. b = "a" will extract a and assign it to b
keep: Keep the extracted variables in the list
allow_nonexisting: Allow non-existing variables, if TRUE, it will not throw an error if the variable is not found If FALSE, it will throw an error if the variable is not found. The non-existing variables will be extracted as NULL.
env: The environment to assign the extracted variables

The list with/ithout the extracted variables