# Background Tasks - `BackgroundTasks`

You can declare a parameter in a *path operation function* or dependency function with the type `BackgroundTasks`, and then you can use it to schedule the execution of background tasks after the response is sent.

You can import it directly from `fastapi`:

```python
from fastapi import BackgroundTasks
```

  <scm>
    <url>https://domain.org/override</url><!-- check that this won't impact child.site.url.inherit.append.path attribute inheritance -->
  </scm>
  <distributionManagement>
    <site><!-- overriding 1 element will reset all elements, but not child.site.url.inherit.append.path attribute -->
      <name>reset</name>
    </site>
  </distributionManagement>

One of those variables is the `PATH` variable.

/// tip

You can learn more about the `PATH` environment variable in the [Environment Variables](environment-variables.md#path-environment-variable){.internal-link target=_blank} section.

///

Activating a virtual environment adds its path `.venv/bin` (on Linux and macOS) or `.venv\Scripts` (on Windows) to the `PATH` environment variable.

import javax.inject.Named;
import javax.inject.Singleton;
import javax.xml.stream.XMLStreamException;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

labels.file_config_details=File Config Details
labels.group_details=Group Details
labels.job_log_details=Job Log Details
labels.key_match_details=Key Match Details
labels.labeltype_details=Labeltype Details
labels.pathmap_details=Pathmap Details
labels.related_content_details=Related Content Details
labels.related_query_details=Related Query Details
labels.request_header_details=Request Header Details
labels.role_details=Role Details

labels.file_config_details=File Config Detail
labels.group_details=Group Detail
labels.job_log_details=Job Log Detail
labels.key_match_details=Key Match Detail
labels.labeltype_details=Labeltype Detail
labels.pathmap_details=Pathmap Detail
labels.related_content_details=Related Content Detail
labels.related_query_details=Related Query Detail
labels.request_header_details=Request Header Detail
labels.role_details=Role Detail

labels.group_details=Group Szczegóły
labels.job_log_details=Job Log Szczegóły
labels.key_match_details=Key Match Szczegóły
labels.labeltype_details=Labeltype Szczegóły
labels.pathmap_details=Pathmap Szczegóły
labels.related_content_details=Related Content Szczegóły
labels.related_query_details=Related Query Szczegóły
labels.request_header_details=Request Header Szczegóły
labels.role_details=Role Szczegóły

labels.file_config_details=File Config Detaylar
labels.group_details=Group Detaylar
labels.job_log_details=Job Log Detaylar
labels.key_match_details=Key Match Detaylar
labels.labeltype_details=Labeltype Detaylar
labels.pathmap_details=Pathmap Detaylar
labels.related_content_details=Related Content Detaylar
labels.related_query_details=Related Query Detaylar
labels.request_header_details=Request Header Detaylar
labels.role_details=Role Detaylar

 * under the License.
 */
package org.apache.maven.internal.transformation;

import javax.xml.stream.XMLStreamException;

import java.io.IOException;
import java.nio.file.Path;

import org.apache.maven.api.services.ModelBuilderException;
import org.apache.maven.api.services.ModelSource;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;

#   TF_BISECT_BAD: First bad commit (e.g. commit from the first failing job)
#   TF_BISECT_SCRIPT: The build script path relative to the TF root dir, e.g.
#     ci/official/wheel.sh
#   TFCI: The env config path, relative to the TF root dir, e.g.
#     ci/official/envs/an_env_config
#
# Note that you can combine bisect.sh with any.sh to bisect a single test:
#
#   export TFCI=...