under test, not sure no errors

upstream_ref/fla/modules/convolution.py

@@ -0,0 +1,42 @@
+# Copyright (c) 2023-2026, Songlin Yang, Yu Zhang, Zhiyuan Li
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+# For a list of all contributors, visit:
+#   https://github.com/fla-org/flash-linear-attention/graphs/contributors
+
+from fla.modules.conv import (
+    ImplicitLongConvolution,
+    LongConvolution,
+    PositionalEmbedding,
+    ShortConvolution,
+    causal_conv1d,
+    fft_conv,
+)
+from fla.modules.conv.cp import CausalConv1dFunctionCP, causal_conv1d_cp
+from fla.modules.conv.cuda import FastCausalConv1dFn, fast_causal_conv1d_fn
+from fla.modules.conv.triton import (
+    CausalConv1dFunction,
+    causal_conv1d_bwd,
+    causal_conv1d_fwd,
+    causal_conv1d_update,
+    causal_conv1d_update_states,
+)
+
+__all__ = [
+    'CausalConv1dFunction',
+    'CausalConv1dFunctionCP',
+    'FastCausalConv1dFn',
+    'ImplicitLongConvolution',
+    'LongConvolution',
+    'PositionalEmbedding',
+    'ShortConvolution',
+    'causal_conv1d',
+    'causal_conv1d_bwd',
+    'causal_conv1d_cp',
+    'causal_conv1d_fwd',
+    'causal_conv1d_update',
+    'causal_conv1d_update_states',
+    'fast_causal_conv1d_fn',
+    'fft_conv',
+]