But in most cases, you will want to perform these steps only **once**.

So, you will want to have a **single process** to perform those **previous steps**, before starting the application.

   *
   * <ul>
   *   <li>If {@code exceptions} has a single exception and that exception is a {@link
   *       RuntimeException}, return it
   *   <li>If {@code exceptions} has a single exceptions and that exceptions is not a
   *       {@link RuntimeException}, return a simple {@code RuntimeException} that wraps it

/// info

`Body` also has all the same extra validation and metadata parameters as `Query`,`Path` and others you will see later.

///

## Embed a single body parameter { #embed-a-single-body-parameter }

Let's say you only have a single `item` body parameter from a Pydantic model `Item`.

By default, **FastAPI** will then expect its body directly.

I'll show you how to **build your own image from scratch** to run a single Uvicorn process. It is a simple process and is probably what you would want to do when using a distributed container management system like **Kubernetes**.

## Recap { #recap }

Docker Compose allows defining and running single host, multi-container Docker applications.

    return yStats.snapshot();
  }

  /**
   * Returns the population covariance of the values. The count must be non-zero.
   *
   * <p>This is guaranteed to return zero if the dataset contains a single pair of finite values. It
   * is not guaranteed to return zero when the dataset consists of the same pair of values multiple
   * times, due to numerical errors.
   *
   * <h3>Non-finite values</h3>
   *

/**
 * Represents a single character mapping rule that defines how input characters are mapped to output characters
 * for text analysis and search processing. This class is used in character mapping dictionaries to transform
 * text during indexing and search operations.
 *
 * <p>Each mapping item consists of one or more input character sequences that are mapped to a single output

		expectedOpType:                    replication.UnsetReplicationType,
		expectedAction:                    replicateNone,
	},
	{ // 2. replication completed to single target
		name: "replication completed to single target",
		tgtInfos: []replicatedTargetInfo{
			{
				Arn:                   "arn1",
				Size:                  249,
				PrevReplicationStatus: replication.Pending,

            assertEquals(0x2, context.getContextType());
        }
    }

    @Nested
    @DisplayName("Encoding Tests")
    class EncodingTests {

        @Test
        @DisplayName("Should encode single cipher correctly")
        void testEncodeSingleCipher() {
            int[] ciphers = { EncryptionNegotiateContext.CIPHER_AES128_CCM };

        assertEquals("Executed: test script with \"quotes\"", result);

        result = jobExecutor.execute("test", "script with 'single quotes'");
        assertEquals("Executed: test script with 'single quotes'", result);
    }

    public void test_execute_longScript() {
        // Test with long script
        StringBuilder longScript = new StringBuilder();