diff --git a/crypto_seller/__init__.py b/crypto_seller/__init__.py
index 2705d42..6e82c98 100644
--- a/crypto_seller/__init__.py
+++ b/crypto_seller/__init__.py
@@ -76,7 +76,6 @@ import dataclasses
 import datetime
 import logging
 import random
-import time
 from collections.abc import Callable
 from decimal import Decimal
 from pathlib import Path
@@ -102,6 +101,22 @@ PATH_TRADES_FILE = PATH_OUTPUT / 'trades.csv'
 
 @dataclasses.dataclass(frozen=True)
 class AutoSellConfig:
+    """Configuration for `run_auto_sell`.
+
+    Fields:
+
+    - `interval_range`: The range to determine sell-off intervals from. After
+      each sell-off it will sleep an amount of time uniformly sampled from this
+      range.
+    - `input_asset`: Asset to sell.
+    - `input_amount_range`: Range to uniformly sample sell-off sizes from.
+    - `output_asset`: Asset to "buy".
+    - `seller`: Depository seller to use.
+    - `sleep`: Sleep method to use.
+    - `exit_when_empty`: Whether the system should stop once there is nothing
+      more to sell. Recommended.
+    """
+
     interval_range: tuple[datetime.timedelta, datetime.timedelta]
     input_asset: fin_defs.Asset
     input_amount_range: tuple[Decimal, Decimal]
@@ -113,25 +128,41 @@ class AutoSellConfig:
 
 @dataclasses.dataclass(frozen=True)
 class AutoSellRunResults:
+    """Result information after `run_auto_sell`.
+
+    Fields:
+    - `order_details`: The list of order details.
+    - `total_duration`: Total duration of the run.
+    - `total_sleep_duration`: Amount of time spent waiting between sell-offs.
+    """
+
     order_details: list[fin_depo.data.TradeOrderDetails]
     total_duration: datetime.timedelta
     total_sleep_duration: datetime.timedelta
 
     def total_input_amount(self) -> Decimal:
+        """Total amount of assets sold."""
         return sum(o.input_amount for o in self.order_details)
 
     def total_output_amount(self) -> Decimal:
+        """Total amount of assets "bought"."""
         return sum(o.output_amount for o in self.order_details)
 
 
 def sample_from_range(rng: random.Random, range: tuple[Any, Any]) -> Any:
-    multiplier = rng.random()
+    """Samples uniformly from the given range."""
+    multiplier: float | Decimal = rng.random()
     if isinstance(range[0], Decimal):
         multiplier = Decimal(multiplier)
     return range[0] + (range[1] - range[0]) * multiplier
 
 
 def run_auto_sell(config: AutoSellConfig) -> AutoSellRunResults:
+    """Executes the sell-off.
+
+    Sell-offs are performed in rounds of sizes and with intervals randomly
+    based on the given configuration.
+    """
     rng = random.SystemRandom()
 
     time_start = datetime.datetime.now(tz=datetime.UTC)