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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def connect(filename: str, mode: str = 'r+', *, validate: bool = True, spec_version: str = "2.0.1") -> LoomConnection: 	""" 	Establish a connection to a .loom file. 	Args: 		filename:		Path to the Loom file to open 		mode:			Read/write mode, 'r+' (read/write) or 'r' (read-only), defaults to 'r+' 		validate:		Validate the file structure against the Loom file format specification 		spec_version:	The loom file spec version to validate against (e.g. "2.0.1" or "old") 	Returns: 		A LoomConnection instance. 	Remarks: 		This function should typically be used as a context manager (i.e. inside a ``with``-block):
 		.. highlight:: python 		.. code-block:: python 			import loompy 			with loompy.connect("mydata.loom") as ds: 				print(ds.ca.keys()) 		This ensures that the file will be closed automatically when the context block ends 		Note: if validation is requested, an exception is raised if validation fails. 	"""

	return LoomConnection(filename, mode, validate=validate, spec_version=spec_version)