code: def test_join_invalid_validate(left_no_dup, right_no_dup):
      # GH 46622
      # Check invalid arguments
      msg = (
          '"invalid" is not a valid argument. '
          "Valid arguments are:\n"
          '- "1:1"\n'
          '- "1:m"\n'
          '- "m:1"\n'
          '- "m:m"\n'
          '- "one_to_one"\n'
          '- "one_to_many"\n'
          '- "many_to_one"\n'
          '- "many_to_many"'
      )
      with pytest.raises(ValueError, match=msg):
          left_no_dup.merge(right_no_dup, on="a", validate="invalid")
  
imports: from datetime import datetime
  import numpy
  import pytest
  from pandas.errors import MergeError
  import pandas
  from pandas import DataFrame, Index, MultiIndex, date_range, period_range
  import pandas._testing
  from pandas.core.reshape.concat import concat
label_desc: Use image node_id 7 for calling a global function with example usage: test_join_invalid_validate(left_no_dup, right_no_dup) without return types