{{alias}}( obj, keys )
    Returns a partial object copy excluding specified keys.

    The function returns a shallow copy.

    The function ignores non-existent keys.

    The function only copies own properties. Hence, the function never copies
    inherited properties.

    Parameters
    ----------
    obj: Object
        Source object.

    keys: string|Array<string>
        Keys to exclude.

    Returns
    -------
    out: Object
        New object.

    Examples
    --------
    > var obj1 = { 'a': 1, 'b': 2 };
    > var obj2 = {{alias}}( obj1, 'b' )
    { 'a': 1 }

    See Also
    --------