Create and bind mount file in Docker

The Docker documentation about bind mounts states that:

The file or directory does not need to exist on the Docker host already. It is created on demand if it does not yet exist.

This is true for folders: if I bind mount as:

docker run -v $PWD/mydir:/mydir image:version

then the mydir folder is created and bind mounted in the container. But I cannot find the syntax for doing the same thing for a file either at the above linked page nor anywhere else.

Copyright Notice：Content Author:「Nicola Mori」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/72621218/create-and-bind-mount-file-in-docker