# tensorplay.library.define

Source: https://www.tensorplay.cn/docs/generated/tensorplay.library.define.html

```python
tensorplay.library.define(qualname: str, schema: str | None = None, *, lib: Any = None, tags: Any = ()) → None
```

Creates the CustomOpDef if absent (kernels are then attached
with [impl()](/docs/generated/tensorplay.library.impl.html#tensorplay.library.impl) or Library("ns", "IMPL").impl).  tags is
Like Library.define, a full "ns::op(Tensor) -> Tensor" string
may be pasted as qualname.