Can codegen generate input array size as #define instead of hard coded numbers in function definitions?

I have a function which formats some data into a string and returns it. For this example let's say it is something simple like so:

function [formattedString, someStruct] = paramsToString(someStruct)
formattedString = ['a=' someStruct.a ', b=' someStruct.b];
end;

I then use codegen to create "C" code like so:

codegen -config cfg -c -d build -report convertToString.m -args {someStruct}

The generated code looks like this:

void convertToString(const someStructType *someStruct, char_T formattedSomeStruct_data[2750], int32_T formattedSomeStruct_size[2])

To call this from some other C code (not matlab) one has to do this:

char_T formattedSomeStruct_data[2750];
int32_T formattedSomeStruct_size[2];
convertToString(someStruct, formattedSomeStruct_data, formattedSomeStruct_size);

The problem is that to call this code I need to know the max size of formattedSomeStruct_data which is only defined in the function definition itself to be 2750.

I can hard code this number in the function I am calling but that is really bad as I will have to change this every time Matlab code changes.

Is there away to force codegen to put that info into some header file preferably into a #define such that the calling code would like so:

char_T formattedSomeStruct_data[MAX_SIZE_OF_RESULT];
int32_T formattedSomeStruct_size[2]; //This is probably ok as it is always 2 in matlab land.
convertToString(someStruct, formattedSomeStruct_data, formattedSomeStruct_size);

[Y]

Anyone?