<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _compute_callables_count(self, iters: Dict[str, Any]):
 """Iterate over all issues and count the number of times each callable is seen."""

        count = dict.fromkeys([issue["callable"] for issue in iters["issues"]], 0)
        for issue in iters["issues"]:
            count[issue["callable"]] += 1

        return count