Fast API's Response model and Dependencies are cover in this articles and other related stuff .

Response Model 

Fastapi's response model is a powerful feature that helps you define the structure and format of data that API will return in response.

They act like a contract between your API and it's clients , specifying the expected data format in response.

Define using python type hints, typically pydantic models.

Benefits:

Automatically documentation: fastapi generate openai doc that reflect the defined response model.

Data Validation: Fastapi validate the response adata against the model,ensuring data integrity.

@app.get('/student/{id}',response_model=StudentResponse)
async def student(id):
    pass

Dependencies 

Dependencies injection refers to the mechanism where an object receive other objects that it depends on. The other object are called dependencies.