text: 
  CREATE OR ALTER PROCEDURE [json].[test object_is_object]
  AS
  BEGIN
    	-----------------------------------------------------------------------------------------------------------------
  	-- Arrange:
  	-----------------------------------------------------------------------------------------------------------------
  	DECLARE @dataType tinyint;
  	DECLARE @jsonObject nvarchar(MAX) = N'{
  				  "my key $1": {
  					"regularKey":{
  					  "key with . dot": 1
  					}
  				  }
  				}';
  
  	-----------------------------------------------------------------------------------------------------------------
  	-- Act: 
  	-----------------------------------------------------------------------------------------------------------------
  	SELECT @dataType = dda.[get_json_data_type](@jsonObject);
  
  	-----------------------------------------------------------------------------------------------------------------
  	-- Assert: 
  	-----------------------------------------------------------------------------------------------------------------
  	EXEC [tSQLt].[AssertEquals] @Expected = 5, @Actual = @dataType;
  
  END;
  