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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 OpenSourcePath(self, source_path):
 """Opens the source path. Args: source_path (str):
 source path. """

    source_path_spec = path_spec_factory.Factory.NewPathSpec(
        definitions.TYPE_INDICATOR_OS, location=source_path)

    self.AddScanNode(source_path_spec, None)