* This can be used to decide whether compression is worthwhile.
     *
     * @param data the data to analyze
     * @param algorithm the compression algorithm
     * @return estimated compression ratio (0.0 to 1.0, where 0.5 means 50% size reduction)
     */
    double estimateCompressionRatio(byte[] data, int algorithm);

    /**
     * Gets the minimum data size threshold for compression.

    }
  }

  /**
   * Returns a human-readable representation of HTTP/2 frame headers.
   *
   * The format is:
   *
   * ```
   * direction streamID length type flags
   * ```
   *
   * Where direction is `<<` for inbound and `>>` for outbound.
   *
   * For example, the following would indicate a HEAD request sent from the client.
   * ```
   * `<< 0x0000000f    12 HEADERS       END_HEADERS|END_STREAM

    public ModelBuildingException(ModelBuildingResult result) {
        super(toMessage(result));
        this.result = result;
    }

    /**
     * Gets the interim result of the model building up to the point where it failed.
     *
     * @return The interim model building result or {@code null} if not available.
     */
    public ModelBuildingResult getResult() {
        return result;
    }

    /**

	if !found {
		return nil, &ErrARNNotFound{}
	}
	return id, nil
}

// TargetIDResult returns result of Remove/Send operation, sets err if
// any for the associated TargetID
type TargetIDResult struct {
	// ID where the remove or send were initiated.
	ID TargetID
	// Stores any error while removing a target or while sending an event.
	Err error
}

// Remove - closes and removes targets by given target IDs.

```

</div>

In the output, there's a line with something like:

```hl_lines="4"
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

That line shows the URL where your app is being served, in your local machine.

### Check it { #check-it }

Open your browser at <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

	}

	tx.Rollback()

	if err := DB.First(&User{}, "name = ?", "transaction").Error; err == nil {
		t.Fatalf("Should not find record after rollback, but got %v", err)
	}

	txDB := DB.Where("fake_name = ?", "fake_name")
	tx2 := txDB.Session(&gorm.Session{NewDB: true}).Begin()
	user2 := *GetUser("transaction-2", Config{})
	if err := tx2.Save(&user2).Error; err != nil {

        protected final String version;
        /** The URL where the artifact can be downloaded */
        protected final String url;

        /**
         * Creates a new artifact with name, version, and URL.
         *
         * @param name the name of the artifact
         * @param version the version of the artifact
         * @param url the URL where the artifact can be downloaded
         */

    }

    /**
     * Test getMessageByDcerpcError() with an error code larger than any known.
     * The binary search implementation has a bug where it accesses array out of bounds.
     */
    @Test
    void testGetMessageByDcerpcError_largerThanAny() {
        int unknownCode = 0x7FFFFFFF; // Max int value

# Extending OpenAPI { #extending-openapi }

There are some cases where you might need to modify the generated OpenAPI schema.

In this section you will see how.

## The normal process { #the-normal-process }

The normal (default) process, is as follows.

A `FastAPI` application (instance) has an `.openapi()` method that is expected to return the OpenAPI schema.

        return subtypeOf(newArrayType(upperBounds[0]));
      }
    }
    return JavaVersion.CURRENT.newArrayType(componentType);
  }

  /**
   * Returns a type where {@code rawType} is parameterized by {@code arguments} and is owned by
   * {@code ownerType}.
   */
  static ParameterizedType newParameterizedTypeWithOwner(
      @Nullable Type ownerType, Class<?> rawType, Type... arguments) {