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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _build_tag_param_list(params, tags):
    '''
    helper function to build a tag parameter list to send
    '''
    keys = sorted(tags.keys())
    i = 1
    for key in keys:
        value = tags[key]
        params['Tags.member.{0}.Key'.format(i)] = key
        if value is not None:
            params['Tags.member.{0}.Value'.format(i)] = value
        i += 1