code: def _basic_expr(cond):
      return conditional_expressions.if_exp(
          cond, lambda: 1, lambda: 2, "cond"
      )
  
imports: import unittest
  from nvidia.dali._autograph.operators import conditional_expressions
label_desc: Use image node_id 1 for calling a global function with example usage: _basic_expr(cond) and returns: conditional_expressions