Omar Younis

**Describe the bug** The spec dict of SimpleCrossing environments is not serializable due to `obstacle_type`. **Code example** ```python import gymnasium as gym import minigrid gym.make("MiniGrid-SimpleCrossingS11N5-v0").spec.to_json() ``` **System Info** Minigrid installed...

I think the parameters of the Bernoulli mixture models should not depend on d but only k:

[Proposal] Allow to specify dtype for Discrete

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### Proposal Add dtype argument to spaces.Discrete (similar to MultiDiscrete and Box). ### Motivation Currently the dtype is fixed to numpy.int64. However, often Discrete spaces are much smaller, resulting in...

ENH: Change naming convention

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Following the discussion in https://github.com/Farama-Foundation/Minari/pull/217, we made the env_name of a dataset id, part of the namespace. This means datasets with id like `door-human-v2` becomes now `door/human-v2`. This allows to...