code: func GetDBlock(keymr string) (*DBlock, error) {
  	params := keyMRRequest{KeyMR: keymr}
  	req := NewJSON2Request("directory-block", APICounter(), params)
  	resp, err := factomdRequest(req)
  	if err != nil {
  		return nil, err
  	}
  	if resp.Error != nil {
  		return nil, resp.Error
  	}
  
  	db := new(DBlock)
  	if err := json.Unmarshal(resp.JSONResult(), db); err != nil {
  		return nil, err
  	}
  
  	return db, nil
  }
docs: // GetDBlock requests a Directory Block from factomd by its Key Merkle Root