Vitis Model Composer allows you import the AI Engine kernel from the AI Engine library. This allows you to create a block with an interface that has input and output ports equivalent to the arguments of an AI Engine kernel function. It also provides the flexibility to configure the kernel parameters using the Block Parameters dialog box. If you have a data-flow graph instead of an AI Engine kernel function, Model Composer allows you to import it into the Simulink environment. From there, you can seamlessly connect the AI Engine graph block with AI Engine kernel block to build a complete system.
In summary, the entry point for using an AI Engine block set can be a kernel or a data flow sub-graph. For these, Vitis Model Composer can generate a block with interfaces that matches the function arguments of the kernel or graph.