interface Deno.RunPermissionDescriptor
The permission descriptor for the `allow-run` and `deny-run` permissions, which controls
access to what sub-processes can be executed by Deno. The option `command`
allows scoping the permission to a specific executable.
**Warning, in practice, `allow-run` is effectively the same as `allow-all`
in the sense that malicious code could execute any arbitrary code on the
host.**