<human>:  maximum size of a bytes object.
<bot>: Here is a Python code to maximum size of a bytes object

import sys

def max_size():
    """
    Returns the maximum size of a bytes object.
    :return:
    """
    return sys.maxsize

# Enter the integer
int_val = 1000000000

# Calling the function
print((max_size()))

#Example Output
# 9223372036854775807

#Remember to inspect code for bugs.