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Show First 20 Lines • Show All 577 Lines • ▼ Show 20 Lines	def snapshot_get_by_origin_visit(self, origin, visit):

visit = self._origin_visit_get_updated(origin_url, visit)		visit = self._origin_visit_get_updated(origin_url, visit)
snapshot_id = visit.snapshot		snapshot_id = visit.snapshot
if snapshot_id:		if snapshot_id:
return self.snapshot_get(snapshot_id)		return self.snapshot_get(snapshot_id)
else:		else:
return None		return None

def snapshot_get_latest(self, origin, allowed_statuses=None):
origin_url = self._get_origin_url(origin)
if not origin_url:
return

visit = self.origin_visit_get_latest(
origin_url, allowed_statuses=allowed_statuses, require_snapshot=True
)
if visit and visit["snapshot"]:
snapshot = self.snapshot_get(visit["snapshot"])
if not snapshot:
raise StorageArgumentException(
"last origin visit references an unknown snapshot"
)
return snapshot

def snapshot_count_branches(self, snapshot_id):		def snapshot_count_branches(self, snapshot_id):
snapshot = self._snapshots[snapshot_id]		snapshot = self._snapshots[snapshot_id]
return collections.Counter(		return collections.Counter(
branch.target_type.value if branch else None		branch.target_type.value if branch else None
for branch in snapshot.branches.values()		for branch in snapshot.branches.values()
)		)

def snapshot_get_branches(		def snapshot_get_branches(
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