code: def transform_tangent_vec(self, tangent_vec, base_point):
      return tangent_vec
  
file_path: geomstats/geomstats/test/utils.py
imports: from abc import ABC
label_desc: Use image node_id 2 for calling the IdentityPointTransformer obj's underlying member method code with example usage: obj.transform_tangent_vec(tangent_vec, base_point) and returns: tangent_vec