Fix typo of `Block`. (#28727)

src/transformers/models/mixtral/modeling_mixtral.py

@@ -787,7 +787,7 @@ MIXTRAL_ATTENTION_CLASSES = {
 }
 
 
-class MixtralBLockSparseTop2MLP(nn.Module):
+class MixtralBlockSparseTop2MLP(nn.Module):
     def __init__(self, config: MixtralConfig):
         super().__init__()
         self.ffn_dim = config.intermediate_size
@@ -805,6 +805,14 @@ class MixtralBLockSparseTop2MLP(nn.Module):
         return current_hidden_states
 
 
+class MixtralBLockSparseTop2MLP(MixtralBlockSparseTop2MLP):
+    def __init__(self, *args, **kwargs):
+        logger.warning_once(
+            "MixtralBLockSparseTop2MLP is deprecated by MixtralBlockSparseTop2MLP and will be removed in v4.40."
+        )
+        super().__init__(*args, **kwargs)
+
+
 class MixtralSparseMoeBlock(nn.Module):
     """
     This implementation is
@@ -827,7 +835,7 @@ class MixtralSparseMoeBlock(nn.Module):
         # gating
         self.gate = nn.Linear(self.hidden_dim, self.num_experts, bias=False)
 
-        self.experts = nn.ModuleList([MixtralBLockSparseTop2MLP(config) for _ in range(self.num_experts)])
+        self.experts = nn.ModuleList([MixtralBlockSparseTop2MLP(config) for _ in range(self.num_experts)])
 
     def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
         """ """