def METHOD_NAME(positions, to_origin):
    """Move positions to a new origin.
    Args:
        positions (dict of Dendrogram: np.array): positions
        to_origin (np.array): where to move. np.array of (2,) shape for x,y coordindates.
    Returns:
        Moved positions.
    """
    to_origin = np.asarray(to_origin)
    return {dendrogram: position + to_origin for dendrogram, position in positions.items()}