code: func (obj *Doc) GetFieldAndColumnSamples(ctx context.Context, fieldsOrColumnsWithWildcards []*FieldOrColumn, maxNumberOfValues int, randSeed int) ([]*SampleResult, error) {
  	result := &struct {
  		Result []*SampleResult	`json:"qResult"`
  	} {}
  	err := obj.rpc(ctx, "GetFieldAndColumnSamples", result, fieldsOrColumnsWithWildcards, maxNumberOfValues, randSeed)
  	return result.Result, err 
  }
docs: // Get sample values from either a column in a table or from a field.
  // Supports wildcard matches in tables or field names:
  // - '*' for zero or more characters.
  // - '?' for one character.
  //
  // Parameters:
  //
  // ◾ fieldsOrColumnsWithWildcards   -   Pairs of table (optionally) and field names. Support wildcard matches.
  //
  // ◾ maxNumberOfValues              -   Max number of sample values returned. Depending on the column or field size the number of returned samples can be less than MaxNumberOfValues. If MaxNumberOfValues is negative all sample values are returned.
  //
  // ◾ randSeed                       -   Optional. Sets the random number seed. Should only be set for test purposes.
  //