code: func (obj *Doc) GetFieldDescription(ctx context.Context, fieldName string) (*FieldDescription, error) {
  	result := &struct {
  		Return *FieldDescription	`json:"qReturn"`
  	} {}
  	err := obj.rpc(ctx, "GetFieldDescription", result, fieldName)
  	return result.Return, err 
  }
docs: // Returns the description of a field.
  //
  // Parameters:
  //
  // ◾ fieldName   -   Name of the field.
  //