As Addition to other responses, @JsonProperty annotation is de facto critical if you utilize the @JsonCreator annotation in lessons which would not have a no-arg constructor. I immediately found out, not surprisingly, that this doens't work: Python in no way binds the callable to the thing and I want the https://m3mantalyahillssector79gurgaon.blogspot.com/2025/07/aipl-sector-103-gurgaon-premium.html