def connection_url(self, name=None):
return '<STR_LIT>'.format(**{k: v for k, v in self._connect_options(name)})<EOL>
Provides a connection string for database as a sqlalchemy compatible URL.

NB - this doesn't include special arguments related to SSL connectivity (which are outside the scope
of the connection URL format).

Parameters
----------
name: str, optional
    an override database name for the connection string.

Returns
-------
str: the connection URL (e.g. postgresql://user1@localhost:5432/db1)