class_docstr: Implementation of the 3-arm T-Maze environment 
class_docstr_tok: ["Implementation","of","the","3-arm","T-Maze","environment"]
code: def get_rand_transition_dist(self):
      pass
  
imports: from pymdp.envs import Env
  from pymdp import utils, maths
  import numpy
label_desc: Use image node_id 9 for calling the TMazeEnv obj's underlying member method code with example usage: obj.get_rand_transition_dist() without return types