// Compress adjacent spaces (a space is determined by
	// unicode.IsSpace() internally here) to one space and return
	return strings.Join(strings.Fields(input), " ")
}

// checkMetaHeaders will check if the metadata from header/url is the same with the one from signed headers
func checkMetaHeaders(signedHeadersMap http.Header, r *http.Request) APIErrorCode {
	// check values from http header
	for k, val := range r.Header {

			Queries("list-type", "2", "metadata", "true")
		// ListObjectsV2
		router.Methods(http.MethodGet).
			HandlerFunc(s3APIMiddleware(api.ListObjectsV2Handler)).
			Queries("list-type", "2")
		// ListObjectVersions
		router.Methods(http.MethodGet).
			HandlerFunc(s3APIMiddleware(api.ListObjectVersionsMHandler)).
			Queries("versions", "", "metadata", "true")
		// ListObjectVersions

func Test_metaCacheEntries_merge(t *testing.T) {
	org := loadMetacacheSampleEntries(t)
	a, b := org.shallowClone(), org.shallowClone()
	be := b.entries()
	for i := range be {
		//  Modify b so it isn't deduplicated.
		be[i].metadata = []byte("something-else")
	}
	// Merge b into a
	a.merge(b, -1)
	//nolint:gocritic
	want := append(loadMetacacheSampleNames, loadMetacacheSampleNames...)
	sort.Strings(want)
	got := a.entries().names()

```

Por ejemplo:

{* ../../docs_src/body_multiple_params/tutorial004_an_py310.py hl[28] *}

/// info | Información

`Body` también tiene todos los mismos parámetros de validación y metadatos extras que `Query`, `Path` y otros que verás luego.

///

## Embeber un solo parámetro de cuerpo

Supongamos que solo tienes un único parámetro de cuerpo `item` de un modelo Pydantic `Item`.

      - tutorial/security/oauth2-jwt.md
    - tutorial/middleware.md
    - tutorial/cors.md
    - tutorial/sql-databases.md
    - tutorial/bigger-applications.md
    - tutorial/background-tasks.md
    - tutorial/metadata.md
    - tutorial/static-files.md
    - tutorial/testing.md
    - tutorial/debugging.md
  - Advanced User Guide:
    - advanced/index.md
    - advanced/path-operation-advanced-configuration.md

{* ../../docs_src/custom_request_and_route/tutorial001.py hl[18:26] *}

/// note | Detalles técnicos

Un `Request` tiene un atributo `request.scope`, que es simplemente un `dict` de Python que contiene los metadatos relacionados con el request.

Un `Request` también tiene un `request.receive`, que es una función para "recibir" el cuerpo del request.

El `dict` `scope` y la función `receive` son ambos parte de la especificación ASGI.

     * or greater, otherwise build will fail. How the number to be obtained is left to user (ie by inspecting
     * snapshot repository metadata or alike).
     *
     * Note: this feature is present in Maven 3.9.7 but with different key: <code>maven.buildNumber</code>. In Maven 4
     * as part of cleanup effort this key was renamed to properly reflect its purpose.

import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.ArtifactUtils;
import org.apache.maven.artifact.metadata.ResolutionGroup;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.ArtifactRepositoryPolicy;

/**
 * DefaultMavenMetadataCache
 */
@Named
@Singleton

		// Bucket migration operations
		// ExportBucketMetaHandler
		adminRouter.Methods(http.MethodGet).Path(adminVersion + "/export-bucket-metadata").HandlerFunc(
			adminMiddleware(adminAPI.ExportBucketMetadataHandler))
		// ImportBucketMetaHandler
		adminRouter.Methods(http.MethodPut).Path(adminVersion + "/import-bucket-metadata").HandlerFunc(
			adminMiddleware(adminAPI.ImportBucketMetadataHandler))

		// Remote Tier management operations

          val clean = entry.cleanFiles[i]
          fileSystem.atomicMove(dirty, clean)
          val oldLength = entry.lengths[i]
          // TODO check null behaviour
          val newLength = fileSystem.metadata(clean).size ?: 0
          entry.lengths[i] = newLength
          size = size - oldLength + newLength
        }
      } else {
        fileSystem.deleteIfExists(dirty)
      }
    }