human
Can you provide a the Python program you requested given the following:
Complete the below
def check_platform(name):

    ''''Validator for manifest platform.
    @raise ManifestException: if validation fails'
    '''
assistant
#Here is the Python program you requested.
    def check(n, filename):
        platforms = get_nodes_by_name(n, name)
        try:
            vals = [(p.attributes['os'].value, p.attributes['version'].value, p.getAttribute('notes')) for p in platforms]
        except KeyError as e:
            raise ManifestException(("<platform>    tag    is    missing    required    '%s'    attribute" % str(e)))
        return [Platform(*v) for v in vals]
    return check