def METHOD_NAME(self):
    gseries2 = GeoSeries([Point(i, i) for i in range(3, 6)], crs="epsg:4326")
    result = pd.concat([gseries2, self.gseries], axis=1)
    # Note this is not consistent with concat([gdf, gdf], axis=1) where the
    # left metadata is set on the result. This is deliberate for now.
    assert type(result) is GeoDataFrame
    assert result._geometry_column_name is None
    assert_index_equal(pd.Index([0, 1]), result.columns)
    gseries2.name = "foo"
    result2 = pd.concat([gseries2, self.gseries], axis=1)
    assert type(result2) is GeoDataFrame
    assert result._geometry_column_name is None
    assert_index_equal(pd.Index(["foo", 0]), result2.columns)