when(mockAddress.firstCalledName()).thenReturn(expectedFirstName);

        // When
        String firstName = mockAddress.firstCalledName();

        // Then
        assertEquals(expectedFirstName, firstName, "Should return first called name");
        assertNotNull(firstName, "First called name should not be null");
    }

    @Test

		{"p/", "url", "p/"},
		{"p/", "url", "p/"},
		{"~user", "url", "%7Euser"},
		{"*user", "url", "*user"},
		{"user+password", "url", "user%2Bpassword"},
		{"_user", "url", "_user"},
		{"firstname.lastname", "url", "firstname.lastname"},
	}
	for i, testCase := range testCases {
		t.Run(fmt.Sprintf("Test%d", i+1), func(t *testing.T) {
			outputText := s3EncodeName(testCase.inputText, testCase.encodingType)

```Python
    first_name, last_name
```

ve bu hale getireceğiz:

```Python
    first_name: str, last_name: str
```

Bu kadar.

İşte bunlar "tip belirteçleri":

{* ../../docs_src/python_types/tutorial002.py hl[1] *}


Bu, aşağıdaki gibi varsayılan değerleri bildirmekle aynı şey değildir:

```Python
    first_name="john", last_name="doe"
```