You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: FindVolumeOfACylinder.rb
    path of file: ./repos/program/program/find-volume-of-a-cylinder
    
    the code of the file until where you have to start completion: # Function to calculate the volume of a cylinder
def volume_of_cylinder(radius, height)
    # Calculate the 
    
def volume_of_cylinder(radius, height)
    # Calculate the volume using the formula:
    # V = Ï€ * r^2 * h
    volume = Math::PI * radius * radius * height
  
    # Return the calculated volume
    volume
  end