code: def _query_sample(sample, operators='__eq__'):
      
      if isinstance(operators, str):
          operators = [operators] * len(sample)
  
      if len(sample) != len(operators):
          raise ValueError('Expected `operators` to be a string or a list with the same'
                           ' length as `field_names` ({}), got {}.'.format(len(sample),
                                                                           operators))
  
      queries = []
      for i, fn in enumerate(sample):
          fv = sample[fn]
          op = operators[i]
          queries.append(_build_query(field_name=fn,
                                      field_value=fv,
                                      operator=op))
  
      return _concat_queries(queries, operators='__and__')
docs: Create a TinyDB query that looks for items that have each field in `sample` with a value
      compared with the correspondent operation in `operators`.
  
      Parameters
      ----------
      sample: dict
          The sample data
  
      operators: str or list of str
          A list of comparison operations for each field value in `sample`.
          If this is a str, will use the same operator for all `sample` fields.
          If you want different operators for each field, remember to use an OrderedDict for `sample`.
          Check TinyDB.Query class for possible choices.
  
      Returns
      -------
      query: tinydb.database.Query