code: def test_parameters_validation():
      # Test best_of
      Parameters(best_of=1)
      with pytest.raises(ValidationError):
          Parameters(best_of=0)
      with pytest.raises(ValidationError):
          Parameters(best_of=-1)
      Parameters(best_of=2, do_sample=True)
      with pytest.raises(ValidationError):
          Parameters(best_of=2)
      with pytest.raises(ValidationError):
          Parameters(best_of=2, seed=1)
  
      # Test repetition_penalty
      Parameters(repetition_penalty=1)
      with pytest.raises(ValidationError):
          Parameters(repetition_penalty=0)
      with pytest.raises(ValidationError):
          Parameters(repetition_penalty=-1)
  
      # Test seed
      Parameters(seed=1)
      with pytest.raises(ValidationError):
          Parameters(seed=-1)
  
      # Test temperature
      Parameters(temperature=1)
      with pytest.raises(ValidationError):
          Parameters(temperature=0)
      with pytest.raises(ValidationError):
          Parameters(temperature=-1)
  
      # Test top_k
      Parameters(top_k=1)
      with pytest.raises(ValidationError):
          Parameters(top_k=0)
      with pytest.raises(ValidationError):
          Parameters(top_k=-1)
  
      # Test top_p
      Parameters(top_p=0.5)
      with pytest.raises(ValidationError):
          Parameters(top_p=0)
      with pytest.raises(ValidationError):
          Parameters(top_p=-1)
      with pytest.raises(ValidationError):
          Parameters(top_p=1)
  
      # Test truncate
      Parameters(truncate=1)
      with pytest.raises(ValidationError):
          Parameters(truncate=0)
      with pytest.raises(ValidationError):
          Parameters(truncate=-1)
  
      # Test typical_p
      Parameters(typical_p=0.5)
      with pytest.raises(ValidationError):
          Parameters(typical_p=0)
      with pytest.raises(ValidationError):
          Parameters(typical_p=-1)
      with pytest.raises(ValidationError):
          Parameters(typical_p=1)
  
imports: import pytest
  from text_generation.types import Parameters, Request
  from text_generation.errors import ValidationError
label_desc: Use image node_id 1 for calling a global function with example usage: test_parameters_validation() without return types