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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 fix_e113(self, result):
 """Fix unexpected indentation."""

        line_index = result['line'] - 1
        target = self.source[line_index]
        indent = _get_indentation(target)
        stripped = target.lstrip()
        self.source[line_index] = indent[1:] + stripped