[Feature]: add context object for user function in SerDes, WaitForCondition, WaitForCallback

### What would you like?

I would like to have a context object for my custom SerDes or my user functions in WaitForCondition, WaitForCallback operations

### Possible Implementation

_No response_

### Is this a breaking change?

No

### Does this require an RFC?

No

### Additional Context

_No response_