# ScanContext **`class ScanContext(generator, cleanup_func)`** Bases: [`AbstractContextManager`](https://docs.python.org/3.11/library/contextlib.html#contextlib.AbstractContextManager)[[`Iterator`](https://docs.python.org/3.11/library/collections.abc.html#collections.abc.Iterator)[`T`]], [`Generator`](https://docs.python.org/3.11/library/collections.abc.html#collections.abc.Generator)[`T`, [`None`](https://docs.python.org/3.11/library/constants.html#None), [`None`](https://docs.python.org/3.11/library/constants.html#None)], [`Generic`](https://docs.python.org/3.11/library/typing.html#typing.Generic)[`T`] Context manager wrapper for scan operations that ensures proper cleanup. Implements two use cases: - **Recommended**: ContextManager over Iterator[T] for use with ‘with’ statements - **Legacy**: Generator[T] for direct iteration (issues deprecation warning) When used without entering the context manager, a deprecation warning is issued. > **Note** > > This is a generic class parameterized by type T, which represents > the type of items yielded by the generator. Methods SummaryMethods Documentation **`close()`** Close the generator and perform cleanup. Return type [`None`](https://docs.python.org/3.11/library/constants.html#None) **`send(value)`** Send a value to the generator (required by Generator protocol). Return type [`TypeVar`](https://docs.python.org/3.11/library/typing.html#typing.TypeVar)(`T`) **`throw(typ, val=None, tb=None)`** Throw an exception into the generator (required by Generator protocol). Return type [`TypeVar`](https://docs.python.org/3.11/library/typing.html#typing.TypeVar)(`T`)