code: func (nDB *NetworkDB) GetEntry(tname, nid, key string) ([]byte, error) {
  	nDB.RLock()
  	defer nDB.RUnlock()
  	entry, err := nDB.getEntry(tname, nid, key)
  	if err != nil {
  		return nil, err
  	}
  	if entry != nil && entry.deleting {
  		return nil, types.NotFoundErrorf("entry in table %s network id %s and key %s deleted and pending garbage collection", tname, nid, key)
  	}
  
  	return entry.value, nil
  }
docs: // GetEntry retrieves the value of a table entry in a given (network,
  // table, key) tuple