Method is_alias

IPython/core/alias.py:248–250

Return whether or not a given name has been defined as an alias

(self, name)

        return aname if isinstance(aname, Alias) else None

    def is_alias(self, name):
        """Return whether or not a given name has been defined as an alias"""
        return self.get_alias(name) is not None

    def undefine_alias(self, name):
        if self.is_alias(name):