Can you explain how the consumer mechanism works in the system?

In Python, a consumer is an object or function that takes data from a source (producer) and processes it.

Consumers are often used in patterns related to data streams, queues, or generators.

For example, when working with a generator, a consumer can receive values one by one and perform actions:

def consumer():
    while True:
        item = yield
        print(f'Processed: {item}')

c = consumer()
next(c)  # initialize generator
c.send('data')  # consumer received and processed the data

In queue systems, a consumer reads messages from the queue and performs processing, ensuring asynchrony and separation of responsibilities between the producer and consumer of data.