Custom function call to "initialize function" with a TLC

I create an inlined C-MEX S-function and a TLC file that wraps my get_value() function.

I need to call another init_my_alg() funtion for once for all of the instances of S-function.

It seems that, to put a custom line can be done by writing within %function Start(block, system) Output. This generates my custom line for all instances.

definition of %function BlockTypeSetup(block, system) void is fits for my request but this function does not generates any output.

I checked the following code confiration function lists at the followimg link but could not find a proper fine. "https://www.mathworks.com/help/rtw/tlc/code-configuration-functions.html#responsive_offcanvas"

I just want to generate a code such as below:

void test_model_step(void)

{

//some useful code

}

void test_model_initialize(void)

{

init_my_alg(); // once for all instances of s-functions

}