def bind_rows(df, other, join='outer', ignore_index=False):
    """
    Binds DataFrames "vertically", stacking them together. This is equivalent
    to `pd.concat` with `axis=0`.

    Args:
        df (pandas.DataFrame): Top DataFrame (passed in via pipe).
        other (pandas.DataFrame): Bottom DataFrame.

    Kwargs:
        join (str): One of `"outer"` or `"inner"`. Outer join will preserve
            columns not present in both DataFrames, whereas inner joining will
            drop them.
        ignore_index (bool): Indicates whether to consider pandas indices as
            part of the concatenation (defaults to `False`).
    """

    df = pd.concat([df, other], join=join, ignore_index=ignore_index, axis=0)
    return df
Binds DataFrames "vertically", stacking them together. This is equivalent
    to `pd.concat` with `axis=0`.

    Args:
        df (pandas.DataFrame): Top DataFrame (passed in via pipe).
        other (pandas.DataFrame): Bottom DataFrame.

    Kwargs:
        join (str): One of `"outer"` or `"inner"`. Outer join will preserve
            columns not present in both DataFrames, whereas inner joining will
            drop them.
        ignore_index (bool): Indicates whether to consider pandas indices as
            part of the concatenation (defaults to `False`).