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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 collab_to_group_author_key_map(authors):
 """compile a map of author collab to group-author-key"""

    collab_map = {}
    for author in authors:
        if author.get("collab"):
            collab_map[author.get("collab")] = author.get("group-author-key")
    return collab_map