}
  }

  public void testReplaceFrom() {
    assertEquals("yoho", is('a').replaceFrom("yaha", 'o'));
    assertEquals("yh", is('a').replaceFrom("yaha", ""));
    assertEquals("yoho", is('a').replaceFrom("yaha", "o"));
    assertEquals("yoohoo", is('a').replaceFrom("yaha", "oo"));
    assertEquals("12 > 5", is('>').replaceFrom("12 > 5", ">"));
  }

  public void testRetainFrom() {

    }
  }

  public void testReplaceFrom() {
    assertEquals("yoho", is('a').replaceFrom("yaha", 'o'));
    assertEquals("yh", is('a').replaceFrom("yaha", ""));
    assertEquals("yoho", is('a').replaceFrom("yaha", "o"));
    assertEquals("yoohoo", is('a').replaceFrom("yaha", "oo"));
    assertEquals("12 > 5", is('>').replaceFrom("12 > 5", ">"));
  }

  public void testRetainFrom() {

  /**
   * Returns a string copy of the input character sequence, with each matching BMP character
   * replaced by a given replacement sequence. For example:
   *
   * <pre>{@code
   * CharMatcher.is('a').replaceFrom("yaha", "oo")
   * }</pre>
   *
   * ... returns {@code "yoohoo"}.
   *
   * <p><b>Note:</b> If the replacement is a fixed string with only one character, you are better

IAAXA,EAAe,KAAO,OAGnDyJ,KAAM,CACFL,IAAK,EACLC,IAAK,KAMb,IAEIqqB,GAAgB,2LAChBC,GAAgB,CACZ,SACA,YACA,SACA,QACA,QACA,SACA,SACA,YACA,SACA,QACA,QACA,YAGRn7B,EAAM0X,aAAa,KAAM,CACrBhJ,OAAQ,gGAAuFK,MAC3F,KAEJN,YAAa,0EAAiEM,MAC1E,KAEJH,YAAassB,GACbvsB,iBAAkBusB,GAClBxD,kBA3BsB,oGA4BtBC,uBA3B2B,6FA4B3B9oB,YAAassB,GACbvD,gBAAiBuD,GACjBtD,iBAAkBsD,GAClBlpB,SAAU,sDAAsDlD,MAAM,KACtEiD,cAAe,qCAAqCjD,MAAM,KAC1DgD,YAAa,uBAAuBhD,MAAM,KAC1CojB,oBAAoB,EACpB5oB,eAAgB,CACZ2L,GAAI,QACJD,IAAK,WACLE,EAAG,aACHC,GAAI,cACJ...

SzCrG,EAAY,GAIZ6E,EAAQ,SAAUC,GAEjB,IAAIwB,EAEJnJ,EAAgBpE,YAAa+L,GAAKyB,UACjC,UAAYjK,EAAU,iDACLA,EAAU,oEAKtBwI,EAAGX,iBAAkB,cAAexK,QACzCqG,EAAUhJ,KAAM,MAAQ0H,GAAa,aAAe+B,EAAW,KAI1DqE,EAAGX,iBAAkB,QAAU7H,EAAU,MAAO3C,QACrDqG,EAAUhJ,KAAM,MAMX8N,EAAGX,iBAAkB,KAAO7H,EAAU,MAAO3C,QAClDqG,EAAUhJ,KAAM,YAOX8N,EAAGX,iBAAkB,YAAaxK,QACvCqG,EAAUhJ,KAAM,aAKjBsP,EAAQtQ,EAAS0C,cAAe,UAC1BG,aAAc,OAAQ,UAC5BiM,EAAG/L,YAAauN,GAAQzN,aAAc,OAAQ,KAQ9CsE,EAAgBpE,YAAa+L,GAAKnC,UAAW,EACM,IAA9CmC,EAAGX,iBAAkB,aAAcxK,QACvCqG,E...

```Python
{!../../docs_src/python_types/tutorial011.py!}
```

/// info

Daha fazla şey öğrenmek için <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic'i takip edin</a>.

///

**FastAPI** tamamen Pydantic'e dayanmaktadır.

Daha fazlasini görmek için [Tutorial - User Guide](tutorial/index.md){.internal-link target=_blank}.

##  **FastAPI** tip belirteçleri

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