openclimatefix/ocf-data-sampler

AI Summary: The task involves modifying the `ocf-data-sampler` project to support multiple dropout fraction values for timedeltas in the data sampling process. This requires updating the dropout logic in `dropout.py`, modifying the data model configuration and validation in `model.py`, and adding validation to ensure the dropout fractions sum to 1. The goal is to provide a more flexible and user-friendly way to specify dropout behavior.