code: def unary_op_name(op):
      return _unary_ops_to_methods[op]
  
imports: from itertools import chain
  import re
  from numbers import Number
  import numexpr
  from numexpr.necompiler import getExprNames
  from numpy import full, inf
  from catalyst.pipeline.term import Term, ComputableTerm
label_desc: Use image node_id 3 for calling a global function with example usage: unary_op_name(op) and returns: _unary_ops_to_methods