{{alias}}( dtypeX )
    Returns a loop block size for multi-dimensional array tiled loops.

    Parameters
    ----------
    dtypeX: string|DataType
        Array data type.

    Returns
    -------
    out: integer
        Block size.

    Examples
    --------
    > var out = {{alias}}( 'float64' )
    <number>
    > out = {{alias}}( 'int32' )
    <number>

    See Also
    --------