diff --git a/mercurial/repository.py b/mercurial/repository.py
--- a/mercurial/repository.py
+++ b/mercurial/repository.py
@@ -55,7 +55,7 @@
     """
     ui = interfaceutil.Attribute("""ui.ui instance""")
 
-    def url():
+    def url():  # type: ignore
         """Returns a URL string representing this peer.
 
         Currently, implementations expose the raw URL used to construct the
@@ -67,23 +67,23 @@
         value.
         """
 
-    def local():
+    def local():  # type: ignore
         """Returns a local repository instance.
 
         If the peer represents a local repository, returns an object that
         can be used to interface with it. Otherwise returns ``None``.
         """
 
-    def peer():
+    def peer():  # type: ignore
         """Returns an object conforming to this interface.
 
         Most implementations will ``return self``.
         """
 
-    def canpush():
+    def canpush():  # type: ignore
         """Returns a boolean indicating if this peer can be pushed to."""
 
-    def close():
+    def close():  # type: ignore
         """Close the connection to this peer.
 
         This is called when the peer will no longer be used. Resources
@@ -117,20 +117,20 @@
     methods commonly call wire protocol commands of the same name.
     """
 
-    def branchmap():
+    def branchmap():  # type: ignore
         """Obtain heads in named branches.
 
         Returns a dict mapping branch name to an iterable of nodes that are
         heads on that branch.
         """
 
-    def capabilities():
+    def capabilities():  # type: ignore
         """Obtain capabilities of the peer.
 
         Returns a set of string capabilities.
         """
 
-    def clonebundles():
+    def clonebundles():  # type: ignore
         """Obtains the clone bundles manifest for the repo.
 
         Returns the manifest as unparsed bytes.
@@ -148,7 +148,7 @@
         Returns a generator of bundle data.
         """
 
-    def heads():
+    def heads():  # type: ignore
         """Determine all known head revisions in the peer.
 
         Returns an iterable of binary nodes.
@@ -185,7 +185,7 @@
         namespace.
         """
 
-    def stream_out():
+    def stream_out():  # type: ignore
         """Obtain streaming clone data.
 
         Successful result should be a generator of data chunks.
@@ -262,7 +262,7 @@
         until all command requests have been issued.
         """
 
-    def sendcommands():
+    def sendcommands():  # type: ignore
         """Trigger submission of queued command requests.
 
         Not all transports submit commands as soon as they are requested to
@@ -272,7 +272,7 @@
         When called, no more new commands may be issued with this executor.
         """
 
-    def close():
+    def close():  # type: ignore
         """Signal that this command request is finished.
 
         When called, no more new commands may be issued. All outstanding
@@ -295,7 +295,7 @@
         """True if the peer cannot receive large argument value for commands."""
     )
 
-    def commandexecutor():
+    def commandexecutor():  # type: ignore
         """A context manager that resolves to an ipeercommandexecutor.
 
         The object this resolves to can be used to issue command requests
@@ -439,7 +439,7 @@
     in the index.
     """
 
-    def __len__():
+    def __len__():  # type: ignore
         """The total number of revisions."""
 
     def __getitem__(rev):
@@ -491,10 +491,10 @@
     * DAG data (storing and querying the relationship between nodes).
     * Metadata to facilitate storage.
     """
-    def __len__():
+    def __len__():  # type: ignore
         """Obtain the number of revisions stored for this file."""
 
-    def __iter__():
+    def __iter__():  # type: ignore
         """Iterate over revision numbers for this file."""
 
     def hasnode(node):
@@ -770,7 +770,7 @@
 class ifilestorage(ifileindex, ifiledata, ifilemutation):
     """Complete storage interface for a single tracked file."""
 
-    def files():
+    def files():  # type: ignore
         """Obtain paths that are backing storage for this file.
 
         TODO this is used heavily by verify code and there should probably
@@ -847,7 +847,7 @@
         directory is removed from the collection.
         """
 
-    def __iter__():
+    def __iter__():  # type: ignore
         """Iterate over the directories in this collection of paths."""
 
     def __contains__(path):
@@ -876,10 +876,10 @@
         Raises ``KeyError`` if the path does not exist in the manifest.
         """
 
-    def __len__():
+    def __len__():  # type: ignore
         """Return the number of entries in the manifest."""
 
-    def __nonzero__():
+    def __nonzero__():  # type: ignore
         """Returns True if the manifest has entries, False otherwise."""
 
     __bool__ = __nonzero__
@@ -900,13 +900,13 @@
         Raises ``KeyError`` if the path is not in the manifest.
         """
 
-    def __iter__():
+    def __iter__():  # type: ignore
         """Iterate over paths in the manifest."""
 
-    def iterkeys():
+    def iterkeys():  # type: ignore
         """Iterate over paths in the manifest."""
 
-    def keys():
+    def keys():  # type: ignore
         """Obtain a list of paths in the manifest."""
 
     def filesnotin(other, match=None):
@@ -918,7 +918,7 @@
         Returns a set of paths.
         """
 
-    def dirs():
+    def dirs():  # type: ignore
         """Returns an object implementing the ``idirs`` interface."""
 
     def hasdir(dir):
@@ -969,23 +969,23 @@
     def flags(path, default=''):
         """Return the flags value for a path or a default value if missing."""
 
-    def copy():
+    def copy():  # type: ignore
         """Return a copy of this manifest."""
 
-    def items():
+    def items():  # type: ignore
         """Returns an iterable of (path, node) for items in this manifest."""
 
-    def iteritems():
+    def iteritems():  # type: ignore
         """Identical to items()."""
 
-    def iterentries():
+    def iterentries():  # type: ignore
         """Returns an iterable of (path, node, flags) for this manifest.
 
         Similar to ``iteritems()`` except items are a 3-tuple and include
         flags.
         """
 
-    def text():
+    def text():  # type: ignore
         """Obtain the raw data representation for this manifest.
 
         Result is used to create a manifest revision.
@@ -1009,7 +1009,7 @@
     as part of a larger interface.
     """
 
-    def new():
+    def new():  # type: ignore
         """Obtain a new manifest instance.
 
         Returns an object conforming to the ``imanifestrevisionwritable``
@@ -1017,7 +1017,7 @@
         ``imanifestlog`` collection as this instance.
         """
 
-    def copy():
+    def copy():  # type: ignore
         """Obtain a copy of this manifest instance.
 
         Returns an object conforming to the ``imanifestrevisionwritable``
@@ -1025,7 +1025,7 @@
         ``imanifestlog`` collection as this instance.
         """
 
-    def read():
+    def read():  # type: ignore
         """Obtain the parsed manifest data structure.
 
         The returned object conforms to the ``imanifestdict`` interface.
@@ -1034,7 +1034,7 @@
 class imanifestrevisionstored(imanifestrevisionbase):
     """Interface representing a manifest revision committed to storage."""
 
-    def node():
+    def node():  # type: ignore
         """The binary node for this manifest."""
 
     parents = interfaceutil.Attribute(
@@ -1122,10 +1122,10 @@
         TODO this doesn't feel appropriate for the storage interface.
         """)
 
-    def __len__():
+    def __len__():  # type: ignore
         """Obtain the number of revisions stored for this manifest."""
 
-    def __iter__():
+    def __iter__():  # type: ignore
         """Iterate over revision numbers for this manifest."""
 
     def rev(node):
@@ -1212,13 +1212,13 @@
         See the documentation in ``ifilemutation`` for more.
         """
 
-    def checksize():
+    def checksize():  # type: ignore
         """Obtain the expected sizes of backing files.
 
         TODO this is used by verify and it should not be part of the interface.
         """
 
-    def files():
+    def files():  # type: ignore
         """Obtain paths that are backing storage for this manifest.
 
         TODO this is used by verify and there should probably be a better API
@@ -1317,7 +1317,7 @@
         TODO formalize interface for returned object.
         """
 
-    def clearcaches():
+    def clearcaches():  # type: ignore
         """Clear caches associated with this collection."""
 
     def rev(node):
@@ -1453,13 +1453,13 @@
     names = interfaceutil.Attribute(
         """A ``namespaces`` instance.""")
 
-    def close():
+    def close():  # type: ignore
         """Close the handle on this repository."""
 
-    def peer():
+    def peer():  # type: ignore
         """Obtain an object conforming to the ``peer`` interface."""
 
-    def unfiltered():
+    def unfiltered():  # type: ignore
         """Obtain an unfiltered/raw view of this repo."""
 
     def filtered(name, visibilityexceptions=None):
@@ -1495,16 +1495,16 @@
     def __contains__(changeid):
         """Whether a changeset exists."""
 
-    def __nonzero__():
+    def __nonzero__():  # type: ignore
         """Always returns True."""
         return True
 
     __bool__ = __nonzero__
 
-    def __len__():
+    def __len__():  # type: ignore
         """Returns the number of changesets in the repo."""
 
-    def __iter__():
+    def __iter__():  # type: ignore
         """Iterate over revisions in the changelog."""
 
     def revs(expr, *args):
@@ -1522,19 +1522,19 @@
     def anyrevs(specs, user=False, localalias=None):
         """Find revisions matching one of the given revsets."""
 
-    def url():
+    def url():  # type: ignore
         """Returns a string representing the location of this repo."""
 
     def hook(name, throw=False, **args):
         """Call a hook."""
 
-    def tags():
+    def tags():  # type: ignore
         """Return a mapping of tag to node."""
 
     def tagtype(tagname):
         """Return the type of a given tag."""
 
-    def tagslist():
+    def tagslist():  # type: ignore
         """Return a list of tags ordered by revision."""
 
     def nodetags(node):
@@ -1543,10 +1543,10 @@
     def nodebookmarks(node):
         """Return the list of bookmarks pointing to the specified node."""
 
-    def branchmap():
+    def branchmap():  # type: ignore
         """Return a mapping of branch to heads in that branch."""
 
-    def revbranchcache():
+    def revbranchcache():  # type: ignore
         pass
 
     def branchtip(branchtip, ignoremissing=False):
@@ -1564,17 +1564,17 @@
         Returns a list of bools.
         """
 
-    def local():
+    def local():  # type: ignore
         """Whether the repository is local."""
         return True
 
-    def publishing():
+    def publishing():  # type: ignore
         """Whether the repository is a publishing repository."""
 
-    def cancopy():
+    def cancopy():  # type: ignore
         pass
 
-    def shared():
+    def shared():  # type: ignore
         """The type of shared repository or None."""
 
     def wjoin(f, *insidef):
@@ -1586,7 +1586,7 @@
     def filectx(path, changeid=None, fileid=None):
         """Obtain a filectx for the given file revision."""
 
-    def getcwd():
+    def getcwd():  # type: ignore
         """Obtain the current working directory from the dirstate."""
 
     def pathto(f, cwd=None):
@@ -1604,16 +1604,16 @@
     def wwritedata(filename, data):
         """Resolve data for writing to the wvfs, using data filters."""
 
-    def currenttransaction():
+    def currenttransaction():  # type: ignore
         """Obtain the current transaction instance or None."""
 
     def transaction(desc, report=None):
         """Open a new transaction to write to the repository."""
 
-    def undofiles():
+    def undofiles():  # type: ignore
         """Returns a list of (vfs, path) for files to undo transactions."""
 
-    def recover():
+    def recover():  # type: ignore
         """Roll back an interrupted transaction."""
 
     def rollback(dryrun=False, force=False):
@@ -1625,19 +1625,19 @@
     def updatecaches(tr=None, full=False):
         """Warm repo caches."""
 
-    def invalidatecaches():
+    def invalidatecaches():  # type: ignore
         """Invalidate cached data due to the repository mutating."""
 
-    def invalidatevolatilesets():
+    def invalidatevolatilesets():  # type: ignore
         pass
 
-    def invalidatedirstate():
+    def invalidatedirstate():  # type: ignore
         """Invalidate the dirstate."""
 
     def invalidate(clearfilecache=False):
         pass
 
-    def invalidateall():
+    def invalidateall():  # type: ignore
         pass
 
     def lock(wait=True):
@@ -1646,7 +1646,7 @@
     def wlock(wait=True):
         """Lock the non-store parts of the repository."""
 
-    def currentwlock():
+    def currentwlock():  # type: ignore
         """Return the wlock if it's held or None."""
 
     def checkcommitpatterns(wctx, vdirs, match, status, fail):
@@ -1659,10 +1659,10 @@
     def commitctx(ctx, error=False, origctx=None):
         """Commit a commitctx instance to the repository."""
 
-    def destroying():
+    def destroying():  # type: ignore
         """Inform the repository that nodes are about to be destroyed."""
 
-    def destroyed():
+    def destroyed():  # type: ignore
         """Inform the repository that nodes have been destroyed."""
 
     def status(node1='.', node2=None, match=None, ignored=False,
@@ -1672,10 +1672,10 @@
     def addpostdsstatus(ps):
         pass
 
-    def postdsstatus():
+    def postdsstatus():  # type: ignore
         pass
 
-    def clearpostdsstatus():
+    def clearpostdsstatus():  # type: ignore
         pass
 
     def heads(start=None):
@@ -1794,7 +1794,7 @@
     could wrap the encoded object data in ``wireprototypes.encodedresponse``
     instances to avoid this overhead.
     """
-    def __enter__():
+    def __enter__():  # type: ignore
         """Marks the instance as active.
 
         Should return self.
@@ -1831,7 +1831,7 @@
         instance.
         """
 
-    def lookup():
+    def lookup():  # type: ignore
         """Attempt to resolve an entry in the cache.
 
         The instance is instructed to look for the cache key that it was
@@ -1860,7 +1860,7 @@
         ``yield obj``.
         """
 
-    def onfinished():
+    def onfinished():  # type: ignore
         """Called after all objects have been emitted from the command function.
 
         Implementations should return an iterator of objects to forward to