使用Simhash模块 计算出了两个文本的海明距离，但是不知道该如何使用simhash自带的函数进一步计算相似度。
如果进一步自定义函数，应该怎么计算呢？求各位相助

from simhash import Simhash
hash1 = Simhash(u'what is your real answer he asked the criminal when they firstly meet each other in ')
hash2 = Simhash(u'the criminal did not tell anybody his name and motivation when they' )
print('hash1',hash1)
print('hash2',hash2)
print('hash1.distance(hash2):',hash1.distance(hash2))

>--hash1 <simhash.Simhash object at 0x000002026372E310

>>--hash2 <simhash.Simhash object at 0x000002026372E730

>>--hash1.distance(hash2): 28