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Adding tree_util.stack_leaves()
and tree_util.unstack_leaves()
#20934
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tree_utils.stack_leaves()
and tree_utils.unstack_leaves()
tree_util.stack_leaves()
and tree_util.unstack_leaves()
To be clear, are these the semantics you have in mind? def stack_leaves(pytrees, axis):
return jax.tree.map(lambda *xs: jnp.stack(xs, axis), pytrees) |
Yes |
For something like this, I'd probably lean toward recommending users implement what they need via existing API composability, rather than providing a new API for something that can already be pretty succinctly expressed. What do you think? |
Maybe adding tree util cookbook would be useful? @jakevdp |
A pytree cookbook would be an interesting idea! This idea also came up in #20594. @ayaka14732, is that something you'd be interested in thinking about? |
stack_leaves
: Stack the leaves of one or more PyTrees along a new axis.unstack_leaves
: Unstack the leaves of a PyTree.References:
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