"content": {"application/json": {"schema": {}}},
                        },
                        "422": {
                            "description": "Validation Error",
                            "content": {
                                "application/json": {
                                    "schema": {

</p>

<h2 id="Errors">Errors</h2>

<p>
The predeclared type <code>error</code> is defined as
</p>

<pre>
type error interface {
	Error() string
}
</pre>

<p>
It is the conventional interface for representing an error condition,
with the nil value representing no error.
For instance, a function to read data from a file might be defined:

#include "tensorflow/core/framework/tensor_shape.h"
#include "tensorflow/core/platform/env.h"
#include "tensorflow/core/platform/errors.h"
#include "tensorflow/core/platform/mutex.h"
#include "tensorflow/core/util/device_name_utils.h"
#include "tsl/platform/errors.h"
#include "tsl/platform/thread_annotations.h"

namespace tensorflow {
namespace parallel_device {
namespace {

class OpDeleter {
 public:

	}
	for i, test := range specs {
		result := extractPathPrefixAndSuffix(test.path, test.prefix, test.suffix)
		if result != test.expected {
			t.Errorf("unexpected result on test[%v]: expected[%s] but had [%s]", i, test.expected, result)
		}
	}

// to stay in the language.
func println(args ...Type)

// The error built-in interface type is the conventional interface for
// representing an error condition, with the nil value representing no error.
type error interface {
	Error() string

{!> ../../docs_src/header_param_models/tutorial002.py!}
```

////

If a client tries to send some **extra headers**, they will receive an **error** response.

For example, if the client tries to send a `tool` header with a value of `plumbus`, they will receive an **error** response telling them that the header parameter `tool` is not allowed:

```json
{
    "detail": [
        {
            "type": "extra_forbidden",

                            "content": {"application/json": {"schema": {}}},
                        },
                        "422": {
                            "description": "Validation Error",
                            "content": {
                                "application/json": {
                                    "schema": {

                            "content": {"application/json": {"schema": {}}},
                        },
                        "422": {
                            "description": "Validation Error",
                            "content": {
                                "application/json": {
                                    "schema": {

	latestDriveStatsMu    sync.RWMutex
	lastDriveStatsRefresh time.Time
)

// PeerResourceMetrics represents the resource metrics
// retrieved from a peer, along with errors if any
type PeerResourceMetrics struct {
	Metrics map[MetricSubsystem]ResourceMetrics
	Errors  []string
}

// ResourceMetrics is a map of unique key identifying
// a resource metric (e.g. reads_per_sec_{node}_{drive})
// to its data

	expected := "NAME  NAMESPACE      VERSION\n" +
		"foo   \x1b[32mbar\x1b[0m            1.0\n" +
		"baz   \x1b[32mqux\x1b[0m            2.0\n" +
		"qux   \x1b[32mquux\x1b[0m           3\n"
	if got.String() != expected {
		t.Errorf("got %q, want %q", got.String(), expected)
	}