# Dependencies in path operation decorators { #dependencies-in-path-operation-decorators }

In some cases you don't really need the return value of a dependency inside your *path operation function*.

Or the dependency doesn't return a value.

But you still need it to be executed/solved.

For those cases, instead of declaring a *path operation function* parameter with `Depends`, you can add a `list` of `dependencies` to the *path operation decorator*.

Then, behind the scenes, it would put that JSON-compatible data (e.g. a `dict`) inside of a `JSONResponse` that would be used to send the response to the client.

But you can return a `JSONResponse` directly from your *path operations*.

It might be useful, for example, to return custom headers or cookies.

            final File noImageFile = new File(outputFile.getAbsolutePath() + NOIMAGE_FILE_SUFFIX);
            if (!noImageFile.isFile() || systemHelper.getCurrentTimeAsLong() - noImageFile.lastModified() > noImageExpired) {
                if (noImageFile.isFile() && !noImageFile.delete()) {
                    logger.warn("Failed to delete no-image file: {}", noImageFile.getAbsolutePath());
                }

                    if (outputFile.isFile() && !outputFile.delete()) {
                        logger.warn("Failed to delete output file: {}", outputFile.getAbsolutePath());
                    }
                    return false;
                }

                if (outputFile.isFile() && outputFile.length() == 0) {

	if !globalCallhomeConfig.Enabled() {
		return
	}

	go func() {
		r := rand.New(rand.NewSource(time.Now().UnixNano()))
		// Leader node (that successfully acquires the lock inside runCallhome)
		// will keep performing the callhome. If the leader goes down for some reason,
		// the lock will be released and another node will acquire it and take over
		// because of this loop.
		for {

        if (installationToolchainsFile != null && installationToolchainsFile.isFile()) {
            toolchainsRequest.setGlobalToolchainsSource(new FileSource(installationToolchainsFile));
        }
        if (userToolchainsFile != null && userToolchainsFile.isFile()) {
            toolchainsRequest.setUserToolchainsSource(new FileSource(userToolchainsFile));
        }

}

// InlineData returns whether inline data has been set.
// Note that false does not mean there is no inline data,
// only that it is unlikely.
func (j xlMetaV2Object) InlineData() bool {
	_, ok := j.MetaSys[ReservedMetadataPrefixLower+"inline-data"]
	return ok
}

func (j *xlMetaV2Object) ResetInlineData() {
	delete(j.MetaSys, ReservedMetadataPrefixLower+"inline-data")
}

const (

        }

        @Test
        void testIsFile() throws SmbException {
            // Arrange
            doReturn(true).when(smbFile).isFile();

            // Act & Assert
            assertTrue(smbFile.isFile());
        }

        @Test
        void testCanRead() throws SmbException {
            // Arrange
            doReturn(false).when(smbFile).isDirectory();

                throw new FileAccessException("ECL0110", new Object[] { file.getAbsolutePath() });
            }
            properties = new Properties();
            store();
        } else if (!this.propertiesFile.isFile()) {
            throw new FileAccessException("ECL0111", new Object[] { file.getAbsolutePath() });
        }
        load();
    }

    /**
     * Reloads the properties from the specified path.
     *

{* ../../docs_src/path_params/tutorial002_py39.py hl[7] *}

In this case, `item_id` is declared to be an `int`.

/// check

This will give you editor support inside of your function, with error checks, completion, etc.

///

## Data <abbr title="also known as: serialization, parsing, marshalling">conversion</abbr> { #data-conversion }