def is_array(obj):
    """
    Checks if a given sequence is a numpy Array object.

    Parameters
    ----------
    obj : object
        The input argument.

    Returns
    -------
    test result : bool
        The test result of whether seq is a numpy Array or not.

    >>> import numpy as np

    >>> is_array([1, 2, 3, 4, 5])
    False

    >>> is_array(np.array([1, 2, 3, 4, 5]))
    True
    """
    return hasattr(obj, 'dtype')
