### unresolved_hydratable
```
A `hydratable` value with key `%key%` was created, but at least part of it was not used during the render.
The `hydratable` was initialized in:
%stack%
```
The most likely cause of this is creating a `hydratable` in the `script` block of your component and then `await`ing
the result inside a `svelte:boundary` with a `pending` snippet:
```svelte
{(await user).name}
{#snippet pending()}
Loading...
{/snippet}
```
Consider inlining the `hydratable` call inside the boundary so that it's not called on the server.
Note that this can also happen when a `hydratable` contains multiple promises and some but not all of them have been used.