gs.finish(ctx)

		// Tell the emitter about the goroutines we want to render.
		ctx.Resource(uint64(id), gs.name())
	}

	// Set the goroutine to focus on.
	if g.focus != trace.NoGoroutine {
		ctx.Focus(uint64(g.focus))
	}

    <a title="{{.Help.list}}" id="action-source-tab" href="./source" target="_blank">Show source in new tab</a>
    <hr>
    <a title="{{.Help.focus}}" id="action-focus" href="?">Focus</a>
    <a title="{{.Help.ignore}}" id="action-ignore" href="?">Ignore</a>
    <a title="{{.Help.hide}}" id="action-hide" href="?">Hide</a>

        </a>
        {% else %}
          <button type="button" id="sign-in-button" class="rounded-md bg-blue-600 px-3.5 py-2.5 text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600">
            Sign in
          </button>
        {% endif %}
      </div>
    </div>
  </div>
</nav>

<!-- Sign in dialog -->

fi

# Parse the flags to pass to ginkgo
ginkgoflags="-timeout=24h"
if [[ ${parallelism} -gt 1 ]]; then
  ginkgoflags="${ginkgoflags} -nodes=${parallelism} "
fi

if [[ ${focus} != "" ]]; then
  ginkgoflags="${ginkgoflags} -focus=\"${focus}\" "
fi

if [[ ${skip} != "" ]]; then
  ginkgoflags="${ginkgoflags} -skip=\"${skip}\" "
fi

if [[ ${run_until_failure} == "true" ]]; then

    {!> ../../../docs_src/dependencies/tutorial005.py!}
    ```

It declares an optional query parameter `q` as a `str`, and then it just returns it.

This is quite simple (not very useful), but will help us focus on how the sub-dependencies work.

## Second dependency, "dependable" and "dependant"

		return nil, fmt.Errorf("zero divisor specified")
	}

	var filters []string
	addFilter := func(k string, v string) {
		if v != "" {
			filters = append(filters, k+"="+v)
		}
	}
	addFilter("focus", cfg.Focus)
	addFilter("ignore", cfg.Ignore)
	addFilter("hide", cfg.Hide)
	addFilter("show", cfg.Show)
	addFilter("show_from", cfg.ShowFrom)
	addFilter("tagfocus", cfg.TagFocus)
	addFilter("tagignore", cfg.TagIgnore)

 * an expressive source hint for the model problem. Instead, the source hint is configured by the model builder before
 * it delegates to other components that potentially encounter problems. Then, the problem reporter can focus on
 * providing a simple error message, leaving the donkey work of creating a nice model problem to this component.
 *
 */
public interface ModelProblemCollector {

    /**
     * The collected problems.

## First Steps

Let's see a very simple example. It will be so simple that it is not very useful, for now.

But this way we can focus on how the **Dependency Injection** system works.

### Create a dependency, or "dependable"

Let's first focus on the dependency.

It is just a function that can take all the same parameters that a *path operation function* can take:

=== "Python 3.10+"

 * an expressive source hint for the model problem. Instead, the source hint is configured by the model builder before
 * it delegates to other components that potentially encounter problems. Then, the problem reporter can focus on
 * providing a simple error message, leaving the donkey work of creating a nice model problem to this component.
 *
 */
class DefaultModelProblemCollector implements ModelProblemCollector {

ont-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=reset],[type=submit],button,html [type=button]{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring,button:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:.35em .75em .6...