| 56 | return self |
| 57 | |
| 58 | class SequenceClass: |
| 59 | def __init__(self, n): |
| 60 | self.n = n |
| 61 | def __getitem__(self, i): |
| 62 | if 0 <= i < self.n: |
| 63 | return i |
| 64 | else: |
| 65 | raise IndexError |
| 66 | |
| 67 | class SequenceProxyClass: |
| 68 | def __init__(self, s): |
no outgoing calls
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