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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 resolve_one_of(tags, at_least_one):
 """This searches tags for Entites in at_least_one and returns any match Args: tags(list):
 List of tags with Entities to search for Entities at_least_one(list):
 List of Entities to find in tags Returns: object: returns None if no match is found but returns any match as an object """

    if len(tags) < len(at_least_one):
        return None
    for possible_resolution in choose_1_from_each(at_least_one):
        resolution = {}
        pr = possible_resolution[:]
        for entity_type in pr:
            last_end_index = -1
            if entity_type in resolution:
                last_end_index = resolution.get[entity_type][-1].get('end_token')
            tag, value, c = find_first_tag(tags, entity_type, after_index=last_end_index)
            if not tag:
                break
            else:
                if entity_type not in resolution:
                    resolution[entity_type] = []
                resolution[entity_type].append(tag)
        if len(resolution) == len(possible_resolution):
            return resolution

    return None