diff --git a/aim/digifeeds/database/models.py b/aim/digifeeds/database/models.py
index b69850a..e3d0985 100644
--- a/aim/digifeeds/database/models.py
+++ b/aim/digifeeds/database/models.py
@@ -1,6 +1,6 @@
 """
 Digifeeds Models
-================ 
+================
 """
 
 from sqlalchemy import String, ForeignKey, DateTime
@@ -15,35 +15,49 @@ class Base(DeclarativeBase):
 
 
 class Item(Base):
-    __tablename__ = 'items'
+    """
+    A representation of a digifeeds item. It has a barcode and statuses.
+    """
 
-    barcode:  Mapped[str] = mapped_column(
-        String(256), unique=True, primary_key=True)
+    __tablename__ = "items"
+
+    barcode: Mapped[str] = mapped_column(String(256), unique=True, primary_key=True)
     created_at: Mapped[datetime.datetime] = mapped_column(
-        DateTime(timezone=True), server_default=func.now())
+        DateTime(timezone=True), server_default=func.now()
+    )
     statuses: Mapped[list["ItemStatus"]] = relationship()
 
 
 class Status(Base):
-    __tablename__ = 'statuses'
-    id:  Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    """
+    A representation of a digifeeds status. It has a name and a description.
+    """
+
+    __tablename__ = "statuses"
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
     name: Mapped[str] = mapped_column(String(256))
-    description:  Mapped[str] = mapped_column(String(499))
+    description: Mapped[str] = mapped_column(String(499))
     items: Mapped[list["ItemStatus"]] = relationship()
 
     def __repr__(self):
-        return (f'Status(id={self.id}, name={self.name}, description={self.description})')
+        return f"Status(id={self.id}, name={self.name}, description={self.description})"
 
 
 class ItemStatus(Base):
-    __tablename__ = 'item_statuses'
+    """
+    An association table for items and statuses. It includes the timestamp at
+    which the status for an item was created.
+    """
+
+    __tablename__ = "item_statuses"
     item_barcode: Mapped[int] = mapped_column(
-        ForeignKey('items.barcode'), primary_key=True)
-    status_id: Mapped[int] = mapped_column(
-        ForeignKey('statuses.id'), primary_key=True)
+        ForeignKey("items.barcode"), primary_key=True
+    )
+    status_id: Mapped[int] = mapped_column(ForeignKey("statuses.id"), primary_key=True)
     # https://docs.sqlalchemy.org/en/20/core/functions.html#sqlalchemy.sql.functions.now Tell the db to set the date.
     created_at: Mapped[datetime.datetime] = mapped_column(
-        DateTime(timezone=True), server_default=func.now())
+        DateTime(timezone=True), server_default=func.now()
+    )
 
     item: Mapped["Item"] = relationship(back_populates="statuses")
     status: Mapped["Status"] = relationship(back_populates="items")
@@ -51,19 +65,35 @@ class ItemStatus(Base):
     # proxies
     status_name = association_proxy(target_collection="status", attr="name")
     status_description = association_proxy(
-        target_collection="status", attr="description")
+        target_collection="status", attr="description"
+    )
 
 
 def load_statuses(session: Session):
+    """
+    Takes the list of statuses in the function and loads them into the digifeeds database.
+
+    Args:
+        session (Session): A SqlAlchemy session object
+    """
     statuses = [
         {"name": "in_zephir", "description": "Item is in zephir"},
-        {"name": "added_to_digifeeds_set",
-            "description": "Item has been added to the digifeeds set"},
-        {"name": "copying_start",
-            "description": "The process for zipping and copying an item to the pickup location has started"},
-        {"name": "copying_end", "description": "The process for zipping and copying an item to the pickup location has completed successfully"},
-        {"name": "pending_deletion",
-            "description": "The item has been copied to the pickup location and can be deleted upon ingest confirmation"},
+        {
+            "name": "added_to_digifeeds_set",
+            "description": "Item has been added to the digifeeds set",
+        },
+        {
+            "name": "copying_start",
+            "description": "The process for zipping and copying an item to the pickup location has started",
+        },
+        {
+            "name": "copying_end",
+            "description": "The process for zipping and copying an item to the pickup location has completed successfully",
+        },
+        {
+            "name": "pending_deletion",
+            "description": "The item has been copied to the pickup location and can be deleted upon ingest confirmation",
+        },
         {"name": "not_found_in_alma", "description": "Barcode wasn't found in Alma"},
     ]
     objects = []
diff --git a/docs/conf.py b/docs/conf.py
index fe52415..d529700 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,8 +14,16 @@
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
 
-extensions = ["sphinx.ext.napoleon", "sphinx.ext.viewcode", "sphinx.ext.autosummary",
-              "sphinx.ext.autodoc", 'myst_parser', 'sphinxcontrib.mermaid', "sphinx_toolbox.more_autodoc.autonamedtuple"]
+extensions = [
+    "sphinx.ext.napoleon",
+    "sphinx.ext.viewcode",
+    "sphinx.ext.autosummary",
+    "sphinx.ext.autodoc",
+    "myst_parser",
+    "sphinxcontrib.mermaid",
+    "sphinx_toolbox.more_autodoc.autonamedtuple",
+]
+autodoc_mock_imports = ["sqlalchemy"]
 autosummary_generate = True
 
 mermaid_d3_zoom = True
@@ -33,5 +41,5 @@
 html_theme_options = {
     "navigation_depth": 5,
     "collapse_navigation": False,
-    "titles_only": True
+    "titles_only": True,
 }