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Common Elements in Nested Lists

Write a Python function `common_in_nested_lists` that takes a list of lists (nested lists) as input and returns a list of elements that are common to all the nested lists. The order of the elements in the output does not matter.

#### Example Usage
```python [main.nopy]
print(common_in_nested_lists([[12, 18, 23, 25, 45], [7, 12, 18, 24, 28], [1, 5, 8, 12, 15, 16, 18]]))
# Output: [12, 18] (order may vary)

print(common_in_nested_lists([[2, 3, 4, 1], [4, 5], [6, 4, 8], [4, 5], [6, 8, 4]]))
# Output: [4]
```

#### Constraints
- The input will always be a list of lists.
- Each nested list will contain integers.
- The function should handle cases where there are no common elements and return an empty list in such cases.
def common_in_nested_lists(nestedlist):
    """
    Find the common elements in all nested lists.

    Args:
        nestedlist (list of list of int): A list containing nested lists of integers.

    Returns:
        list of int: A list of integers that are common to all nested lists.
    """
    # Placeholder for the solution
    pass
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