def describe_signature(self, signode: TextElement, mode: str, env: 'BuildEnvironment', symbol: 'Symbol') -> None:
    self.exprs[0].describe_signature(signode, mode, env, symbol)
    for i in range(1, len(self.exprs)):
        signode.append(nodes.Text(', '))
        self.exprs[i].describe_signature(signode, mode, env, symbol)
def describe_signature(self, signode: TextElement, mode: str, env: 'BuildEnvironment', symbol: 'Symbol') -> None:
    self.exprs[0].describe_signature(signode, mode, env, symbol)
    for i in range(1, len(self.exprs)):
        signode.append(nodes.Text(', '))
        self.exprs[i].describe_signature(signode, mode, env, symbol)