Some dtype fixes

[codecov[bot]]

Codecov Report

Patch coverage: 66.66% and project coverage change: -0.03% :warning:

Comparison is base (180e134) 83.82% compared to head (24bf8de) 83.80%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #935 +/- ## ========================================== - Coverage 83.82% 83.80% -0.03% ========================================== Files 318 318 Lines 28737 28774 +37 Branches 5489 5504 +15 ========================================== + Hits 24090 24114 +24 - Misses 3141 3145 +4 - Partials 1506 1515 +9 ``` | [Flag](https://app.codecov.io/gh/keras-team/keras-core/pull/935/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team) | Coverage Δ | | |---|---|---| | [keras_core](https://app.codecov.io/gh/keras-team/keras-core/pull/935/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team) | `83.70% <66.66%> (-0.03%)` | :arrow_down: | | [keras_core-jax](https://app.codecov.io/gh/keras-team/keras-core/pull/935/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team) | `67.09% <10.25%> (-0.08%)` | :arrow_down: | | [keras_core-numpy](https://app.codecov.io/gh/keras-team/keras-core/pull/935/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team) | `60.60% <30.76%> (-0.04%)` | :arrow_down: | | [keras_core-tensorflow](https://app.codecov.io/gh/keras-team/keras-core/pull/935/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team) | `66.91% <17.94%> (-0.07%)` | :arrow_down: | | [keras_core-torch](https://app.codecov.io/gh/keras-team/keras-core/pull/935/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team) | `69.16% <15.38%> (-0.08%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team#carryforward-flags-in-the-pull-request-comment) to find out more. | [Files Changed](https://app.codecov.io/gh/keras-team/keras-core/pull/935?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team) | Coverage Δ | | |---|---|---| | [keras\_core/backend/jax/numpy.py](https://app.codecov.io/gh/keras-team/keras-core/pull/935?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team#diff-a2VyYXNfY29yZS9iYWNrZW5kL2pheC9udW1weS5weQ==) | `98.00% <50.00%> (-0.84%)` | :arrow_down: | | [keras\_core/backend/torch/numpy.py](https://app.codecov.io/gh/keras-team/keras-core/pull/935?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team#diff-a2VyYXNfY29yZS9iYWNrZW5kL3RvcmNoL251bXB5LnB5) | `94.84% <62.50%> (-0.41%)` | :arrow_down: | | [keras\_core/backend/tensorflow/numpy.py](https://app.codecov.io/gh/keras-team/keras-core/pull/935?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team#diff-a2VyYXNfY29yZS9iYWNrZW5kL3RlbnNvcmZsb3cvbnVtcHkucHk=) | `93.96% <70.00%> (-0.65%)` | :arrow_down: | | [keras\_core/backend/numpy/numpy.py](https://app.codecov.io/gh/keras-team/keras-core/pull/935?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=keras-team#diff-a2VyYXNfY29yZS9iYWNrZW5kL251bXB5L251bXB5LnB5) | `97.57% <73.33%> (-1.16%)` | :arrow_down: |

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