How to use the gseapy.enrichr.Enrichr function in gseapy

elif subcommand == "ssgsea":
        from .gsea import SingleSampleGSEA
        ss = SingleSampleGSEA(data=args.data, gene_sets=args.gmt, outdir=args.outdir,
                              sample_norm_method=args.norm,
                              min_size=args.mins, max_size=args.maxs, permutation_num=args.n,
                              weighted_score_type=args.weight, scale=args.scale,
                              ascending=args.ascending, processes=args.threads,
                              figsize=args.figsize, format=args.format, graph_num=args.graph,
                              no_plot=args.noplot, seed=args.seed, verbose=args.verbose)
        ss.run()

    elif subcommand == "enrichr":
        # calling enrichr API
        from .enrichr import Enrichr
        enr = Enrichr(gene_list=args.gene_list, descriptions=args.descrip,
                      gene_sets=args.library, organism=args.organism,
                      outdir=args.outdir, format=args.format, cutoff=args.thresh, 
                      background=args.bg, figsize=args.figsize,
                      top_term=args.term, no_plot=args.noplot, verbose=args.verbose)
        enr.run()
    elif subcommand == "biomart":
        from .parser import Biomart
        # read input file or a argument
        name, value = args.filter
        if os.path.isfile(value):
            with open(value, 'r') as val:
                lines = val.readlines()
            value = [ l.strip() for l in lines]
        # run query
        bm = Biomart(host=args.host, verbose=args.verbose)
        bm.query(dataset=args.bg, attributes=args.attrs.split(","),

>>> from gseapy.parser import Biomart 
    >>> bm = Biomart(verbose=False, host="asia.ensembl.org")
    >>> ## view validated marts
    >>> marts = bm.get_marts()
    >>> ## view validated dataset
    >>> datasets = bm.get_datasets(mart='ENSEMBL_MART_ENSEMBL')

    :param str format: Output figure format supported by matplotlib,('pdf','png','eps'...). Default: 'pdf'.
    :param list figsize: Matplotlib figsize, accept a tuple or list, e.g. (width,height). Default: (6.5,6).
    :param bool no_plot: If equals to True, no figure will be drawn. Default: False.
    :param bool verbose: Increase output verbosity, print out progress of your job, Default: False.

    :return: An Enrichr object, which obj.res2d stores your last query, obj.results stores your all queries.
    
    """
    enr = Enrichr(gene_list, gene_sets, organism, description, outdir,
                  cutoff, background, format, figsize, top_term, no_plot, verbose)
    enr.run()

    return enr