/// <summary>
/// Ensures the specified number of bytes are available.
/// Will assign more memory to the <see cref="WritableBuffer"/> if requested amount not currently available.
/// </summary>
/// <param name="count">number of bytes</param>
/// <remarks>
/// Used when writing to <see cref="Memory"/> directly.
/// </remarks>
/// <exception cref="ArgumentOutOfRangeException">
/// More requested than underlying <see cref="IBufferPool"/> can allocate in a contiguous block.
/// </exception>
public void Ensure(int count = 1)
{
_output.Ensure(count);
}
