/// <summary>
/// Asynchronously retrieves the time that this file was last modified.
/// </summary>
/// <returns>A task that resolves to when the file was last modified.</returns>
public async Task <DateTimeOffset> GetLastModifiedAsync()
{
return((await WrappedFile.GetBasicPropertiesAsync()).DateModified);
}
/// <summary>
/// Asynchronously clears the read-only flag of the file.
/// </summary>
/// <returns>A task that completes when the file is updated.</returns>
public Task ClearReadOnlyFlag()
{
return(WrappedFile.ClearFileAttributesAsync(FileAttributes.ReadOnly));
}