Major Description
StructType, ArrayType, and MapType are not accepted by DataTypeOps now.
We should handle these complex types.
Please note that arithmetic operations might be applied to these complex types, for example, ps.Series([[1,2,3]]) + ps.Series([[4,5,6]]) should work the same as pd.Series([[1,2,3]]) + pd.Series([[4,5,6]]).
