Return a new :class:`MapAdapter` with the details specified to the
        call.  Note that `script_name` will default to ``'/'`` if not further
        specified or `None`.  The `server_name` at least is a requirement
        because the HTTP RFC requires absolute URLs for redirects and so all
        redirect exceptions raised by Werkzeug will contain the full canonical
        URL.

        If no path_info is passed to :meth:`match` it will use the default path
        info passed to bind.  While this doesn't really make sense for
        manual bind calls, it's useful if you bind a map to a WSGI
        environment which already contains the path info.

        `subdomain` will default to the `default_subdomain` for this map if
        no defined. If there is no `default_subdomain` you cannot use the
        subdomain feature.

        .. versionadded:: 0.7
           `query_args` added

        .. versionadded:: 0.8
           `query_args` can now also be a string.

        .. versionchanged:: 0.15
            ``path_info`` defaults to ``'/'`` if ``None``.

def bind(
        self,
        server_name,
        script_name=None,
        subdomain=None,
        url_scheme="http",
        default_method="GET",
        path_info=None,
        query_args=None,
    ):
        """Return a new :class:`MapAdapter` with the details specified to the
        call.  Note that `script_name` will default to ``'/'`` if not further
        specified or `None`.  The `server_name` at least is a requirement
        because the HTTP RFC requires absolute URLs for redirects and so all
        redirect exceptions raised by Werkzeug will contain the full canonical
        URL.

        If no path_info is passed to :meth:`match` it will use the default path
        info passed to bind.  While this doesn't really make sense for
        manual bind calls, it's useful if you bind a map to a WSGI
        environment which already contains the path info.

        `subdomain` will default to the `default_subdomain` for this map if
        no defined. If there is no `default_subdomain` you cannot use the
        subdomain feature.

        .. versionadded:: 0.7
           `query_args` added

        .. versionadded:: 0.8
           `query_args` can now also be a string.

        .. versionchanged:: 0.15
            ``path_info`` defaults to ``'/'`` if ``None``.
        """
        server_name = server_name.lower()
        if self.host_matching:
            if subdomain is not None:
                raise RuntimeError("host matching enabled and a subdomain was provided")
        elif subdomain is None:
            subdomain = self.default_subdomain
        if script_name is None:
            script_name = "/"
        if path_info is None:
            path_info = "/"
        try:
            server_name = _encode_idna(server_name)
        except UnicodeError:
            raise BadHost()
        return MapAdapter(
            self,
            server_name,
            script_name,
            subdomain,
            url_scheme,
            path_info,
            default_method,
            query_args,
        )