Loss of some parts of the function definition

Dear developers, I have a request to you.

Now create a script in the application of its function parameters and return values can be declared using %TYPE. 

However, when you save the script is stored inside the server only what is considered his body. Thus, we obtain:

1) loss of the custom formatting.

2) loss of communication parameters and return types with these types of fields to create the function.

3) multidimensional arrays are transformed into one-dimensional: [][] -> []

4) loss of data accuracy: numeric(n,m) -> numeric

Please - how to save and restore the entire text of the definition to CREATE END; unchanged.