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  "mtj_pe": "rotary",
  "mtj_config_map": {
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    "d_model": "n_embd",
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    "layers": "n_layer"
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    "transformer.ln_f.bias": {"mtj": {"module": "projection_shard/~/replicated_layer_norm", "param": "offset"}},
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    "lm_head.bias": {"mtj": {"module": "projection_shard/~/linear", "param": "b", "transforms": ["vocab_pad"]}}
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    "transformer.h.{layer}.ln_1.bias": {"mtj": {"module": "layer_{layer}/~/replicated_layer_norm", "param": "offset"}}
  }
}