class_docstr: Information about the backend H2O cluster.
  
  This object is available from ``h2o.cluster()`` or ``h2o.connection().cluster``, and its purpose is to provide
  basic information / manipulation methods for the underlying cluster.
class_docstr_tok: ["Information","about","the","backend","H2O","cluster",".","This","object","is","available","from","``","h2o.cluster","(",")","``","or","``","h2o.connection","(",")",".cluster","``",",","and","its","purpose","is","to","provide","basic","information","\/","manipulation","methods","for","the","underlying","cluster","."]
docstr: List available API extensions on the h2o backend
docstr_tok: ["List","available","API","extensions","on","the","h2o","backend"]
code: def list_api_extensions(self):
      """List available API extensions on the h2o backend"""
      return self._list_extensions("Capabilities/API")
  
imports: from h2o.utils.compatibility import *
  import json
  import re
  import sys
  import time
  import h2o
  from h2o.exceptions import H2OConnectionError, H2OServerError
  from h2o.display import H2OTableDisplay
  from h2o.schemas import H2OSchema
  from h2o.utils.typechecks import assert_is_type
  from h2o.utils.shared_utils import get_human_readable_bytes, get_human_readable_time
  from h2o.two_dim_table import H2OTwoDimTable
label_desc: Use image node_id 13 for calling the H2OCluster obj's underlying member method code with example usage: obj.list_api_extensions() and returns: self