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Max Difference in Binary Substring

Write a function `find_max_difference` that takes a binary string as input and returns the maximum difference between the number of `0`s and `1`s in any substring of the given string. If no such substring exists, return `0`.

#### Example Usage
```python [main.nopy]
find_max_difference("11000010001")  # Output: 6
find_max_difference("10111")        # Output: 1
find_max_difference("1111")         # Output: 0
```

#### Constraints
- The input string will only contain characters `0` and `1`.
- The length of the string will be between `1` and `10^5`.
def find_max_difference(binary_string):
    """
    Calculate the maximum difference between the number of 0s and 1s in any substring.

    Args:
        binary_string (str): A string consisting of '0's and '1's.

    Returns:
        int: The maximum difference between the count of '0's and '1's in any substring.
    """
    # Placeholder for the solution
    pass
Intermediate strings
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