property Deno.PermissionOptionsObject.ffi
Specifies if the `ffi` permission should be requested or revoked.
If set to `"inherit"`, the current `ffi` permission will be inherited.
If set to `true`, the global `ffi` permission will be requested.
If set to `false`, the global `ffi` permission will be revoked.
"inherit"
| boolean
| Array<string | URL>