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	from typing import Dict, Iterable, List, Optional, Tuple, Union, cast			from typing import Dict, Iterable, List, Optional, Tuple, Union, cast
	import warnings			import warnings

	from . import model			from . import model
	from .collections import ImmutableDict			from .collections import ImmutableDict
	from .hashutil import git_object_header, hash_to_bytehex			from .hashutil import git_object_header, hash_to_bytehex


				def content_git_object(content: model.Content) -> bytes:
				"""Formats a content as a git blob.

				A content's identifier is the blob sha1 à la git of the tagged content.
				"""
				content = cast(model.Content, content)

				if content.data is None:
				raise content.MissingData("Content data is None, cannot format.")

				return git_object_header("blob", len(content.data)) + content.data


	def directory_entry_sort_key(entry: model.DirectoryEntry):			def directory_entry_sort_key(entry: model.DirectoryEntry):
	"""The sorting key for tree entries"""			"""The sorting key for tree entries"""
	if isinstance(entry, dict):			if isinstance(entry, dict):
	# For backward compatibility			# For backward compatibility
	entry = model.DirectoryEntry.from_dict(entry)			entry = model.DirectoryEntry.from_dict(entry)
	if entry.type == "dir":			if entry.type == "dir":
	return entry.name + b"/"			return entry.name + b"/"
	else:			else:
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