code: def _parallel_dict_from_expr(exprs, opt):
      """Transform expressions into a multinomial form."""
      if opt.expand is not False:
          exprs = [expr.expand() for expr in exprs]
  
      if any(expr.is_commutative is False for expr in exprs):
          raise PolynomialError(
              "non-commutative expressions are not supported"
          )
  
      if opt.gens:
          reps, gens = _parallel_dict_from_expr_if_gens(exprs, opt)
      else:
          reps, gens = _parallel_dict_from_expr_no_gens(exprs, opt)
  
      return reps, opt.clone({"gens": gens})
  
imports: from __future__ import annotations
  from sympy.external.gmpy import GROUND_TYPES
  from sympy.core import S, Add, Mul, Pow, Eq, Expr, expand_mul, expand_multinomial
  from sympy.core.exprtools import decompose_power, decompose_power_rat
  from sympy.core.numbers import _illegal
  from sympy.polys.polyerrors import PolynomialError, GeneratorsError
  from sympy.polys.polyoptions import build_options
  import re
label_desc: Use image node_id 12 for calling a global function with example usage: _parallel_dict_from_expr(exprs, opt) and returns: reps,  opt