check_file_exists: check if a file exists with a certain name in a certain...
In benjaminleroy/simulationBands: Conformal Prediction Bands with Simulations

Uses stringr::str_detect, if you want exact, use ^ and $ before and after your string

1	check_file_exists(file_name, dir = ".", .logic = T)

`file_name`	file name or part of string name (if not unique will just check that at least a single file matches the provided name)
`dir`	file directory (default is current directory)
`.logic`	boolean - if should return a boolean (`TRUE`) or should return a vector a files that match `file_name` string (`FALSE`).