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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 from_kirbidir(directory_path):
 		""" 		Iterates trough all .kirbi files in a given directory and converts all of them into one CCACHE object 		"""

		cc = CCACHE()
		dir_path = os.path.join(os.path.abspath(directory_path), '*.kirbi')
		for filename in glob.glob(dir_path):
			with open(filename, 'rb') as f:
				kirbidata = f.read()
				kirbi = KRBCRED.load(kirbidata).native
				cc.add_kirbi(kirbi)
		
		return cc