code: def shell(self, name='default', site=None, use_root=0, **kwargs):
          
          r = self.database_renderer(name=name, site=site)
  
          if int(use_root):
              kwargs = dict(
                  db_user=r.env.db_root_username,
                  db_password=r.env.db_root_password,
                  db_host=r.env.db_host,
                  db_name=r.env.db_name,
              )
              r.env.update(kwargs)
  
          if not name:
              r.env.db_name = ''
  
          r.run('/bin/bash -i -c "mysql -u {db_user} -p\'{db_password}\' -h {db_host} {db_name}"')
docs: Opens a SQL shell to the given database, assuming the configured database
          and user supports this feature.