human
Can you show me a Python function to check if a binary file is a binary.
assistant
Here is a Python function to check if a binary file is a binary

import os

def check_binary(filename):
    """
    Check if the given file is a binary file.
    """
    if not filename.endswith('.bin'):
        return False
    else:
        return True

# Enter the file
filename = "test.bin"

# Calling the function
print((check_binary(filename)))

#Example Output
# True

#Remember to inspect code for bugs.