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Dog Age Calculator

Write a Python function `dog_age(human_years: int) -> float` that calculates a dog's age in dog years based on the following rules:

- For the first two human years, each year counts as 10.5 dog years.
- For each year after the first two, each year counts as 4 dog years.

#### Example Usage
```python [main.nopy]
print(dog_age(1))  # Output: 10.5
print(dog_age(3))  # Output: 25.0
print(dog_age(10)) # Output: 53.0
```

#### Constraints
- The input `human_years` will always be a non-negative integer.
def dog_age(human_years: int) -> float:
    """
    Calculate a dog's age in dog years based on the given human years.

    Args:
        human_years (int): The age of the dog in human years.

    Returns:
        float: The age of the dog in dog years.
    """
    # Implement the logic to calculate the dog's age in dog years
    pass