old_contents: from .lib.symengine_wrapper import (Symbol, Integer, sympify, SympifyError,
          Add, Mul, Pow, exp, log, sqrt, function_symbol, I, E, pi,
          have_mpfr, have_mpc, RealDouble, ComplexDouble, DenseMatrix,
          sin, cos, tan, cot, csc, sec, asin, acos, atan, acot, acsc, asec,
          sinh, cosh, tanh, coth, asinh, acosh, atanh, acoth, Lambdify,
          LambdifyCSE, DictBasic, series)
  from .utilities import var, symbols
  
  if have_mpfr:
      from .lib.symengine_wrapper import RealMPFR
  
  if have_mpc:
      from .lib.symengine_wrapper import ComplexMPC
  
  __version__ = "0.1.0.dev"
  
  def test():
      import pytest, os
      return not pytest.cmdline.main(
          [os.path.dirname(os.path.abspath(__file__))])
  
new_contents: from .lib.symengine_wrapper import (Symbol, Integer, sympify, SympifyError,
          Add, Mul, Pow, exp, log, sqrt, function_symbol, I, E, pi,
          have_mpfr, have_mpc, RealDouble, ComplexDouble, DenseMatrix,
          sin, cos, tan, cot, csc, sec, asin, acos, atan, acot, acsc, asec,
          sinh, cosh, tanh, coth, asinh, acosh, atanh, acoth, Lambdify,
          LambdifyCSE, DictBasic, series, symarray)
  from .utilities import var, symbols
  
  if have_mpfr:
      from .lib.symengine_wrapper import RealMPFR
  
  if have_mpc:
      from .lib.symengine_wrapper import ComplexMPC
  
  __version__ = "0.1.0.dev"
  
  def test():
      import pytest, os
      return not pytest.cmdline.main(
          [os.path.dirname(os.path.abspath(__file__))])
  
subject: Add missing import