/// <summary>
/// Returns a node as a <see cref="Nullable{Int64}"/> object by parsing the value as a number with data size unit.
/// </summary>
/// <param name="path">A Json+ query path that identifies a node in the current context.</param>
/// <returns>The <see cref="Nullable{Int64}"/> value of the node specified by <paramref name="path"/>.</returns>
/// <see cref="JsonPlusValue.GetByteSize()"/>
public long?GetByteSize(JsonPlusPath path)
{
JsonPlusValue value = GetNode(path);
if (ReferenceEquals(value, JsonPlusValue.Undefined))
{
return(null);
}
return(value.GetByteSize());
}