/// <summary>
/// Clears the default graph stack and resets the global default graph.
///
/// NOTE: The default graph is a property of the current thread.This
/// function applies only to the current thread.Calling this function while
/// a `tf.Session` or `tf.InteractiveSession` is active will result in undefined
/// behavior. Using any previously created `tf.Operation` or `tf.Tensor` objects
/// after calling this function will result in undefined behavior.
/// </summary>
/// <returns></returns>
public static void reset_default_graph()
{
//TODO: original source indicates there should be a _default_graph_stack!
//if (!_default_graph_stack.is_cleared())
// throw new InvalidOperationException("Do not use tf.reset_default_graph() to clear " +
// "nested graphs. If you need a cleared graph, " +
// "exit the nesting and create a new graph.");
//_default_graph_stack.reset();
if (default_graph != null)
{
default_graph.Dispose();
}
default_graph = tf.Graph();
}