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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 rbind(dfs):
 """ acts like rbind for pandas dataframes """

    if len(dfs) == 1:
        return dfs[0]
    df = dfs[0]
    for d in dfs[1:]:
        df = df.append(d)
    return df