{"record":{"id":"731a38c79a9c5488","repo":"keras-team/keras","slug":"unknown-floatx-value-value-expected-one-of","errorCode":null,"errorMessage":"Unknown `floatx` value: {value}. Expected one of {accepted_dtypes}","messagePattern":"Unknown `floatx` value: (.+?)\\. Expected one of (.+?)","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/backend/config.py","lineNumber":78,"sourceCode":"\n    Examples:\n    >>> keras.config.floatx()\n    'float32'\n\n    >>> keras.config.set_floatx('float64')\n    >>> keras.config.floatx()\n    'float64'\n\n    >>> # Set it back to float32\n    >>> keras.config.set_floatx('float32')\n\n    Raises:\n        ValueError: In case of invalid value.\n    \"\"\"\n    global _FLOATX\n    accepted_dtypes = {\"bfloat16\", \"float16\", \"float32\", \"float64\"}\n    if value not in accepted_dtypes:\n        raise ValueError(\n            f\"Unknown `floatx` value: {value}. \"\n            f\"Expected one of {accepted_dtypes}\"\n        )\n    _FLOATX = str(value)\n\n\n@keras_export([\"keras.config.epsilon\", \"keras.backend.epsilon\"])\ndef epsilon():\n    \"\"\"Return the value of the fuzz factor used in numeric expressions.\n\n    Returns:\n        A float.\n\n    Example:\n\n    >>> keras.config.epsilon()\n    1e-07\n","sourceCodeStart":60,"sourceCodeEnd":96,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/backend/config.py#L60-L96","documentation":"Error \"Unknown `floatx` value: {value}. Expected one of {accepted_dtypes}\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/backend/config.py:78 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"7a34a03db60bf60042242d6a556fc3be119046a5","analyzedAt":"2026-08-25T21:25:25.994Z","schemaVersion":2},"datasetVersion":"2026-08-26T02:17:13.382Z"}