code: def getblockhash(self, index: int) -> str:
          '''Returns the hash of the block at ; index 0 is the genesis block.'''
  
          return cast(str, self.api_fetch('getblockhash?index=' + str(index))f getblockhash(self, index: int) -> str:
          '''Returns the hash of the block at ; index 0 is the genesis block.'''
  
          return cast(str, self.api_fetch('getblockhash?index=' + str(index)))
docs: Returns the hash of the block at ; index 0 is the genesis block.