How do i store Data types of Input and Outputs of a block in Simulink in a data dictionary ?

I have created a Data Dictionary for a block model in Simulink ? I have an array where i have stored all the INouts and Outputs with the data types of each Input and Output.

I have used the addEntry(MyDictionaryObject ,Input_Output , DataTypes) , but this command gives me a data dictionary with the names( in one column i.e which is nothing but the 'Input_Output') and the value on the side as Data types .

I want to have the DataTypes in the Data types column in the data dictionary . IS there any command which i can use in script by which i put all the data types in the Dat types column in the dictionary.

Thank you in advance