Complete the program below. It should:define a function thathas two parameters, the bit depth and the number of pixels in an imagecalculates and returns the file size (in bits) of the imageasks the user for the bit depth of an imageasks the user for the file size of an imageuses the function to output the size of the image in a variable

Here is a Python program that fulfills your requirements:

# Define the function
def calculate_file_size(bit_depth, num_pixels):
    return bit_depth * num_pixels

# Ask the user for the bit depth of an image
bit_depth = int(input("Enter the bit depth of the image: "))

# Ask the user for the number of pixels in the image
num_pixels = int(input("Enter the number of pixels in the image: "))

# Use the function to calculate the size of the image
image_size = calculate_file_size(bit_depth, num_pixels)

# Output the size of the image
print("The size of the image is", image_size, "bits.")

This program first defines a function calculate_file_size that takes two parameters, bit_depth and num_pixels, and returns their product. It then asks the user to input the bit depth and number of pixels of an image, and uses these inputs to calculate and print the size of the image in bits.