class_docstr: A simple polynomial class over the integers that supports evaluation and pretty-printing.
class_docstr_tok: ["A","simple","polynomial","class","over","the","integers","that","supports","evaluation","and","pretty-printing","."]
code: def __str__(self):
      def stringify_monomial(coeff: int, term: str) -> Optional[str]:
          if coeff == 0:
              return None
          if coeff == 1:
              return term or str(coeff)
          if coeff == -1:
              return f"-{term}" if term else "-1"
          return f"{coeff}{term}"
  
      monomials = [
          stringify_monomial(c, x)
          for c, x in zip(self.coeffs, stringify_terms(self.terms))
      ]
      monomials = [m for m in monomials if m]
      return " + ".join(monomials).replace(" + -", " - ")
  
imports: from collections import defaultdict
  from dataclasses import dataclass, field
  from itertools import combinations_with_replacement, product
  import math
  from math import comb
  import numpy
  import numpy.typing
  import random
  import sympy
  from sympy import Symbol, Poly, diff
  from sympy.parsing.sympy_parser import standard_transformations, implicit_multiplication_application
  from typing import List, Optional, Tuple, Dict
  from helm.benchmark.adaptation.adapters.adapter_factory import ADAPT_GENERATION
  from helm.benchmark.adaptation.adapter_spec import AdapterSpec
  from helm.benchmark.window_services.tokenizer_service import TokenizerService
  from helm.common.authentication import Authentication
  from helm.proxy.services.server_service import ServerService
  from .scenario import Scenario, Instance, Reference, TRAIN_SPLIT, TEST_SPLIT, CORRECT_TAG, Input, Output
label_desc: Use image node_id 3 for calling the Polynomial obj's underlying member method code with example usage: obj.__str__() and returns: str, coeff, term, None, unknown, unknown