def is_structured_array(obj):
    """
    Returns True if the given object is a Numpy Structured Array.

    Parameters
    ----------
    obj: instance
        The object to test whether or not is a Numpy Structured Array.
    """
    if isinstance(obj, np.ndarray) and hasattr(obj, 'dtype'):
        if obj.dtype.names is not None:
            return True
    return False