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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 clusters_sites_obj(clusters):
 """Get all the corresponding sites of the passed clusters. Args: clusters(list):
 list of string uid of sites (e.g 'rennes') Return: dict corresponding to the mapping cluster uid to python-grid5000 site """

    result = {}
    all_clusters = get_all_clusters_sites()
    clusters_sites = {c: s for (c, s) in all_clusters.items()
                        if c in clusters}
    for cluster, site in clusters_sites.items():

        # here we want the site python-grid5000 site object
        result.update({cluster: get_site_obj(site)})
    return result