AttributeError: 'MemoryBank' object has no attribute 'eval'

根据给出的引用内容，AttributeError: 'MemoryBank' object has no attribute 'eval'错误是由于在MemoryBank对象上调用了eval()方法，但该对象没有eval属性引起的。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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