class_docstr: Base class for a backend manager class 
class_docstr_tok: ["Base","class","for","a","backend","manager","class"]
code: def send(
      self,
      req,
      ignore_errors=False,
      raise_on_errors=True,
      async_enable=False,
  ):
      return self._send(
          session=self.session,
          req=req,
          ignore_errors=ignore_errors,
          raise_on_errors=raise_on_errors,
          log=self.log,
          async_enable=async_enable,
      )
  
imports: import abc
  import requests.exceptions
  import six
  import jsonschema
  from ..backend_api import Session, CallResult
  from ..backend_api.session.session import MaxRequestSizeError
  from ..backend_api.session.response import ResponseMeta
  from ..backend_api.session import BatchRequest
  from ..backend_api.session.defs import ENV_ACCESS_KEY, ENV_SECRET_KEY, ENV_OFFLINE_MODE
  from ..config import config_obj
  from ..config.defs import LOG_LEVEL_ENV_VAR
  from ..debugging import get_logger
  from .session import SendError, SessionInterface
label_desc: Use image node_id 6 for calling the InterfaceBase obj's underlying member method code with example usage: obj.send(req, ignore_errors, raise_on_errors, async_enable) and returns: self