The `random` module provides pseudorandom integer generation. For cryptographically secure randomness, use the `crypto` module instead.

```vary
from random import randint, seed

seed(42)                    # reproducible sequence
let roll = randint(1, 6)    # random integer in [1, 6]
```

## Functions

| **Function** | **Returns** | **Description** |
|----------|-----------|-----------|
| `randint(a, b)` | `Int` | Random int N where `a <= N <= b` (inclusive) |
| `randrange(start, stop)` | `Int` | Random int N where `start <= N < stop` |
| `seed(n)` | `None` | Set RNG seed for reproducible sequences |

```vary
from random import randint, randrange, seed

# Reproducible results
seed(123)
let a = randint(1, 100)
let b = randrange(0, 10)    # 0..9

# Dice simulation
let die = randint(1, 6)
let coin = randint(0, 1)    # 0 = tails, 1 = heads
```