Sure, here's the code without comments:

```python
from manim import *

class BasicAnimation(Scene):
    def construct(self):
        text = Text("Hello, world!")
        self.play(Write(text))
        self.wait(1)
        self.play(text.animate.scale(2))
        self.wait(1)
```

This code creates a basic animation that displays the text "Hello, world!" and then scales it up to twice its size. The animation will last for two seconds (1 second for each wait command). Make sure you have Manim installed and set up correctly to run this code and visualize the animation.
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