code: def _cosm1(x, *, evaluate=True):
      return Add(cos(x, evaluate=evaluate), -S.One, evaluate=evaluate)
  
file_path: sympy/sympy/codegen/scipy_nodes.py
imports: from sympy.core.function import Add, ArgumentIndexError, Function
  from sympy.core.power import Pow
  from sympy.core.singleton import S
  from sympy.functions.elementary.exponential import log
  from sympy.functions.elementary.trigonometric import cos, sin
label_desc: Use image node_id 1 for calling a global function with example usage: _cosm1(x) and returns: Add