html += '<option value="' + i + '" selected="selected">' + padded + '</option>';
                } else if (disabled) {
                    html += '<option value="' + i + '" disabled="disabled" class="disabled">' + padded + '</option>';
                } else {
                    html += '<option value="' + i + '">' + padded + '</option>';
                }
            }

            html += '</select> ';

	// This matches most other JSON generators.
	// See golang.org/issue/6384 and golang.org/issue/14135.
	// Like fmt %g, but the exponent cutoffs are different
	// and exponents themselves are not padded to two digits.
	abs := math.Abs(f)
	fmt := byte('f')
	if abs != 0 {
		if abs < 1e-6 || abs >= 1e21 {
			fmt = 'e'
		}
	}
	dst = strconv.AppendFloat(dst, f, fmt, -1, 64)
	if fmt == 'e' {

                It will be added to the generated OpenAPI (e.g. visible at `/docs`).
                """
            ),
        ] = None,
        deprecated: Annotated[
            Optional[bool],
            Doc(
                """
                Mark this *path operation* as deprecated.

                It will be added to the generated OpenAPI (e.g. visible at `/docs`).

                It will be added to the generated OpenAPI (e.g. visible at `/docs`).
                """
            ),
        ] = None,
        deprecated: Annotated[
            Optional[bool],
            Doc(
                """
                Mark this *path operation* as deprecated.

                It will be added to the generated OpenAPI (e.g. visible at `/docs`).

	Metrics bool   `msg:"m"`
	NoOp    bool   `msg:"np"`
}

// DiskInfo is an extended type which returns current
// disk usage per path.
// The above means that any added/deleted fields are incompatible.
//
// The above means that any added/deleted fields are incompatible.
//
//msgp:tuple DiskInfo
type DiskInfo struct {
	Total      uint64
	Free       uint64
	Used       uint64
	UsedInodes uint64
	FreeInodes uint64

```

////

//// tab | Python 3.8+

```Python hl_lines="3  17"
{!> ../../docs_src/path_operation_configuration/tutorial001.py!}
```

////

That status code will be used in the response and will be added to the OpenAPI schema.

/// note | "Technical Details"

You could also use `from starlette import status`.

    *   Added `TensorSpec` support for CompositeTensors.
    *   Added `tf.linalg.tridiagonal_solve` op.
    *   Added partial_pivoting input parameter to `tf.linalg.tridiagonal_solve`.
    *   Added gradient to `tf.linalg.tridiagonal_solve`.
    *   Added `tf.linalg.tridiagonal_mul op`.
    *   Added GPU implementation of `tf.linalg.tridiagonal_matmul`.
    *   Added `LinearOperatorToeplitz`.

	// metrics is served. This value is converted into a metric name prefix
	// using `.metricPrefix()` and is added to each metric returned.
	CollectorPath collectorPath
	// List of all metric descriptors that could be returned by the loader.
	Descriptors []MetricDescriptor
	// (Optional) Extra (constant) label KV pairs to be added to each metric in
	// the group.
	ExtraLabels map[string]string

		TierStats:               d.tiersUsageInfo(buckets),
	}
	return dui
}

// replace will add or replace an entry in the cache.
// If a parent is specified it will be added to that if not already there.
// If the parent does not exist, it will be added.
func (d *dataUsageCache) replace(path, parent string, e dataUsageEntry) {
	hash := hashPath(path)
	if d.Cache == nil {
		d.Cache = make(map[string]dataUsageEntry, 100)
	}

And we can add a list of `dependencies` that will be added to all the *path operations* in the router and will be executed/solved for each request made to them.

/// tip

Note that, much like [dependencies in *path operation decorators*](dependencies/dependencies-in-path-operation-decorators.md){.internal-link target=_blank}, no value will be passed to your *path operation function*.

///