Aggregate doesn't seem to work

[domoritz]

https://api.smellpittsburgh.org/api/v2/smell_reports?region_ids=1&start_time=1724385600&aggregate=True

returns

[{"latitude":40.4362,"longitude":-79.9174,"smell_value":5,"smell_description":null,"feelings_symptoms":null,"additional_comments":null,"zip_code_id":7,"observed_at":1724387085,"zipcode":"15217"},{"latitude":40.4393,"longitude":-79.8935,"smell_value":4,"smell_description":null,"feelings_symptoms":null,"additional_comments":null,"zip_code_id":20,"observed_at":1724392639,"zipcode":"15221"},{"latitude":40.522,"longitude":-80.1672,"smell_value":4,"smell_description":"Diesel exhaust ","feelings_symptoms":null,"additional_comments":null,"zip_code_id":88,"observed_at":1724408296,"zipcode":"15108"},{"latitude":40.2916,"longitude":-79.9029,"smell_value":2,"smell_description":"Burning coal","feelings_symptoms":null,"additional_comments":null,"zip_code_id":45,"observed_at":1724409462,"zipcode":"15025"},{"latitude":40.3003,"longitude":-80.0608,"smell_value":5,"smell_description":"Industrial ","feelings_symptoms":"Can’t breathe outside ","additional_comments":null,"zip_code_id":107,"observed_at":1724412233,"zipcode":"15102"},{"latitude":40.3022,"longitude":-80.0601,"smell_value":5,"smell_description":"SAME POISON GAS FILLING OUR HOMES AND LUNGS. USS/NIPPON SAME TOXIC POISON HYDROGEN SULFIDE STINK AS BEFORE. EMPTY PROMISES. ","feelings_symptoms":"Asphyxiation, disgust. Baby coughing. Back to ER. ","additional_comments":"This is too much AGAIN. No wind to disperse. SHUT THEM DOWN. ","zip_code_id":107,"observed_at":1724412379,"zipcode":"15102"},{"latitude":40.3414,"longitude":-79.9684,"smell_value":3,"smell_description":"Rotten eggs","feelings_symptoms":"Irritated sinus ","additional_comments":"Little hazy. Could be smoke at light fog. ","zip_code_id":33,"observed_at":1724412796,"zipcode":"15236"},{"latitude":40.3226,"longitude":-79.931,"smell_value":4,"smell_description":"Clariton coke plant ","feelings_symptoms":"Headache and burning eyes and sinuses","additional_comments":"This f*ck*ng place woke me up around 2:30/3 this morning it was so bad. Does reporting even do anything?!? It seems like it doesn’t and they just do whatever they want. This place is killing us!","zip_code_id":45,"observed_at":1724413277,"zipcode":"15025"},{"latitude":40.5271,"longitude":-79.854,"smell_value":5,"smell_description":"Seeage","feelings_symptoms":"Asthma, gagging.can’t breath","additional_comments":null,"zip_code_id":3,"observed_at":1724413620,"zipcode":"15238"},{"latitude":40.3361,"longitude":-79.9597,"smell_value":4,"smell_description":"Rotten eggs ","feelings_symptoms":"Eye irritation ","additional_comments":null,"zip_code_id":33,"observed_at":1724415687,"zipcode":"15236"},{"latitude":40.4241,"longitude":-79.9212,"smell_value":4,"smell_description":"Eggy, rotty","feelings_symptoms":null,"additional_comments":null,"zip_code_id":7,"observed_at":1724415899,"zipcode":"15217"}]

even though I was expecting to just get a number.

I'm following https://github.com/CMU-CREATE-Lab/smell-pittsburgh-rails/wiki/Smell-PGH-API#api-endpoints.