human
Write me a Python function to create a random noise bandwidth.
assistant
Here is a Python function to create a random noise bandwidth

import numpy as np

def noise_bandwidth(f):
    """Return the noise bandwidth of a filter.
    The noise bandwidth is the frequency range over which the filter
    passes noise.
    """
    return 2 * f

# Enter the frequency
f = 1000

# Calling the function
print((noise_bandwidth(f)))

#Example Output
# 2000

#Remember to inspect code for bugs.