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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 create_stack( self, stack_name, stack_template_name, parameters=None, capabilities=None ):
 """Create a stack using Amazon's Cloud formation"""

        # Build template_path
        stack_template_path = pathlib.Path(
            self.template_dir).joinpath(stack_template_name)

        # Create stack
        create_stack(
            stack_name,
            stack_template_path,
            parameters=parameters,
            capabilities=capabilities
        )