HyperParameters.get(): should raise KeyError rather than ValueError when name is not Found

HyperParameters.get(): should raise KeyError rather than ValueError when name is not Found: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). HyperParameters objects are dict -like containers . A dict would raise a KeyError .