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8 changes: 7 additions & 1 deletion src/tracer/runtime/router.py
Original file line number Diff line number Diff line change
Expand Up @@ -101,7 +101,13 @@ def _to_embedding(self, input) -> np.ndarray:
" router = tracer.load_router('.tracer', embedder=embedder)"
)
return self.embedder.embed_one(input)
return np.asarray(input, dtype=np.float32)
arr = np.asarray(input, dtype=np.float32)
if arr.ndim == 0:
raise ValueError(
"embedding must be a 1-D array, got a scalar. "
"Reshape it to (1, -1) or pass a list."
)
return arr

def _to_embeddings(self, inputs) -> np.ndarray:
"""Convert inputs (list of texts or 2D array) to (n, dim) float32."""
Expand Down