class_docstr: The element types from Google Cloud Vision API
class_docstr_tok: ["The","element","types","from","Google","Cloud","Vision","API"]
code: def attr_name(self):
      name_cvt = {
          GCVFeatureType.PAGE: "pages",
          GCVFeatureType.BLOCK: "blocks",
          GCVFeatureType.PARA: "paragraphs",
          GCVFeatureType.WORD: "words",
          GCVFeatureType.SYMBOL: "symbols",
      }
      return name_cvt[self]
  
imports: import io
  import os
  import json
  import warnings
  import numpy
  from cv2 import imencode
  from .base import BaseOCRAgent, BaseOCRElementType
  from ..elements import Layout, TextBlock, Quadrilateral, TextBlock
  from ..file_utils import is_gcv_available
label_desc: Use image node_id 1 for calling the GCVFeatureType obj's underlying member method code with example usage: obj.attr_name() and returns: name_cvt