# module `concrete.fhe.extensions.hint` Declaration of hinting extensions, to provide more information to Concrete. --- ## function `hint` ```python hint( x: Union[Tracer, Any], bit_width: Optional[int] = None, can_store: Optional[Any] = None ) → Union[Tracer, Any] ``` Hint the compilation process about properties of a value. Hints are useful if you know something about a value, but it's hard to cover in the inputset. An example of this can be a complex circuit doing a lot of bitwise operations on 8-bits. It's very hard to make sure every intermediate has 8-bits, but you can use hints to solve this. If you mark your intermediates using this function to be 8-bits, they'll be assigned at least 8-bits during the bit-width assignment step. **Args:** x (Union[Tracer, Any]): value to hint bit_width (Optional[int], default = None): hint about bit width can_store (Optional[Any], default = None): hint that the value needs to be able to store the given value **Returns:** Union[Tracer, Any]: hinted value