Implement a setup_items() fixture that can accept an argument 'count' with an integer value. The fixture should generate 3 random values and return them in the test.

Example of a Python fixture using pytest that generates a specified number of random values (default 3) and returns them in a test:

import pytest
import random

@pytest.fixture
def setup_items(request):
    count = getattr(request, 'param', 3)  # default is 3
    items = [random.randint(1, 100) for _ in range(count)]
    return items

# Example with parameter
@pytest.mark.parametrize('setup_items', [5], indirect=True)
def test_example(setup_items):
    assert len(setup_items) == 5
    print(setup_items)

Here, the fixture setup_items takes the parameter count via pytest parameterization mechanism (request.param). If the parameter is not provided, the default value is 3. In the test, you can specify the desired number of elements.