code: def _handle_Integral(expr, func, order, hint):
      r"""
      Converts a solution with integrals in it into an actual solution.
  
      Simplifies the integral mainly using doit()
      """
      if hint.endswith("_Integral"):
          return expr
  
      elif hint == "1st_linear_constant_coeff":
          return simplify(expr.doit())
  
      else:
          return expr
  
imports: from functools import reduce
  from itertools import combinations_with_replacement
  from sympy.simplify import simplify
  from sympy.core import Add, S
  from sympy.core.function import Function, expand, AppliedUndef, Subs
  from sympy.core.relational import Equality, Eq
  from sympy.core.symbol import Symbol, Wild, symbols
  from sympy.functions import exp
  from sympy.integrals.integrals import Integral, integrate
  from sympy.utilities.iterables import has_dups, is_sequence
  from sympy.utilities.misc import filldedent
  from sympy.solvers.deutils import _preprocess, ode_order, _desolve
  from sympy.solvers.solvers import solve
  from sympy.simplify.radsimp import collect
  import operator
label_desc: Use image node_id 3 for calling a global function with example usage: _handle_Integral(expr, func, order, hint) and returns: expr, simplify, expr