<PackageReference Include="System.Security.Permissions" Version="10.0.11" />

System.Security.Permissions.FileIOPermissionAttribute

Allows security actions for FileIOPermission to be applied to code using declarative security. This class cannot be inherited.
namespace System.Security.Permissions { public sealed class FileIOPermissionAttribute : CodeAccessSecurityAttribute { public string Read { get; set; } public string Write { get; set; } public string Append { get; set; } public string PathDiscovery { get; set; } public string ViewAccessControl { get; set; } public string ChangeAccessControl { get; set; } public string All { get; set; } public string ViewAndModify { get; set; } public FileIOPermissionAccess AllFiles { get; set; } public FileIOPermissionAccess AllLocalFiles { get; set; } public FileIOPermissionAttribute(SecurityAction action); } }