Zuerst einmal, Sie können `Path`-, `Query`- und Requestbody-Parameter-Deklarationen frei mischen und **FastAPI** wird wissen, was zu tun ist.

Und Sie können auch Body-Parameter als optional kennzeichnen, indem Sie den Defaultwert auf `None` setzen:

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note | Hinweis

    newFirst = segment.removeEntryFromChain(entryThree, entryOne);
    assertThat(newFirst.getKey()).isSameInstanceAs(keyTwo);
    assertThat(newFirst.getValueReference().get()).isSameInstanceAs(valueTwo);
    assertThat(newFirst.getHash()).isEqualTo(hashTwo);
    newFirst = newFirst.getNext();
    assertThat(newFirst.getKey()).isSameInstanceAs(keyThree);
    assertThat(newFirst.getValueReference().get()).isSameInstanceAs(valueThree);

  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testSetValue() {
    for (Entry<K, V> entry : getMap().entrySet()) {
      if (entry.getKey().equals(k0())) {
        assertEquals("entry.setValue() should return the old value", v0(), entry.setValue(v3()));
        break;
      }
    }
    expectReplacement(entry(k0(), v3()));
  }

  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testSetValue() {
    for (Entry<K, V> entry : getMap().entrySet()) {
      if (entry.getKey().equals(k0())) {
        assertEquals("entry.setValue() should return the old value", v0(), entry.setValue(v3()));
        break;
      }
    }
    expectReplacement(entry(k0(), v3()));
  }

                            .stream()
                            .filter(p -> Pattern.compile(p.getValue()).matcher(kv.getValue()).find())
                            .map(p -> "- " + p.getKey() + " on line " + kv.getKey() + " of " + path)
                    )
                    .collect(Collectors.toList())
            );
        }
        if (failures.isEmpty() == false) {

            }).forEach(e -> {
                if (logger.isDebugEnabled()) {
                    logger.debug("system.properties: setProperty({}, {})", e.getKey(), e.getValue());
                }
                System.setProperty(e.getKey(), e.getValue());
            });
        }
    }

    /**
     * Updates the application configuration.
     *

      assertThat(entryOne.getKey()).isEqualTo(keyOne);
      assertEquals(hashOne, entryOne.getHash());
      assertThat(entryOne.getNext()).isNull();
      assertThat(copyOne.getValue()).isEqualTo(valueOne);

      InternalEntry<Object, Object, ?> copyTwo = segment.copyForTesting(entryTwo, copyOne);
      assertThat(copyTwo.getKey()).isEqualTo(keyTwo);
      assertEquals(hashTwo, copyTwo.getHash());

      assertThat(entryOne.getKey()).isEqualTo(keyOne);
      assertEquals(hashOne, entryOne.getHash());
      assertThat(entryOne.getNext()).isNull();
      assertThat(copyOne.getValue()).isEqualTo(valueOne);

      InternalEntry<Object, Object, ?> copyTwo = segment.copyForTesting(entryTwo, copyOne);
      assertThat(copyTwo.getKey()).isEqualTo(keyTwo);
      assertEquals(hashTwo, copyTwo.getHash());

      super(HashBiMap.this);
    }

    @Override
    public boolean contains(@Nullable Object o) {
      if (o instanceof Entry) {
        Entry<?, ?> e = (Entry<?, ?>) o;
        Object k = e.getKey();
        Object v = e.getValue();
        int eIndex = findEntryByKey(k);
        return eIndex != ABSENT && Objects.equals(v, values[eIndex]);
      }
      return false;
    }

    /**
     * Adds an entry to the built multimap.
     *
     * @since 11.0
     */
    @CanIgnoreReturnValue
    public Builder<K, V> put(Entry<? extends K, ? extends V> entry) {
      return put(entry.getKey(), entry.getValue());
    }

    /**
     * Adds entries to the built multimap.
     *
     * @since 19.0
     */
    @CanIgnoreReturnValue