package cmd

import (
	"errors"
)

// errInvalidArgument means that input argument is invalid.
var errInvalidArgument = errors.New("Invalid arguments specified")

// errMethodNotAllowed means that method is not allowed.
var errMethodNotAllowed = errors.New("Method not allowed")

// errSignatureMismatch means signature did not match.
var errSignatureMismatch = errors.New("Signature does not match")

Unfortunately, writing controllers is very error prone, even for seemingly simple cases.
To work around this, Istio has a variety of abstractions meant to make writing controllers easier.

## Clients

Istio offers a variety of increasingly high level abstractions on top of the common Kubernetes [`client-go`](https://github.com/kubernetes/client-go).

```mermaid

    public static final String INCLUDES_DEPENDENCIES = "includesDependencies";

    /**
     * A boolean flag indicating whether the artifact is meant to be used for the compile/runtime/test build path of a
     * consumer project.
     * <p>
     * Note: This property is about "build path", whatever it means in the scope of the consumer project. It is NOT

    public static final String INCLUDES_DEPENDENCIES = "includesDependencies";

    /**
     * A boolean flag indicating whether the artifact is meant to be used for the compile/runtime/test build path of a
     * consumer project.
     * <p>
     * Note: This property is about "build path", whatever it means in the scope of the consumer project. It is NOT

// Instead, at the start of each GC, the cache is cleared entirely. That
// is, the cache is lossy, and the loss happens at the start of each GC.
// This means that clients need to be able to cope with cache entries
// disappearing, but it also means that clients don't need to worry about
// cache entries keeping the keys from being collected.
type Cache[K, V any] struct {

        // Not meant to be called by a client
        throw new UnsupportedOperationException();
    }

    @Override
    public void fireTestRunFinished(Result result) {
        // Not meant to be called by a client
        throw new UnsupportedOperationException();
    }

    @Override
    public void addFirstListener(RunListener listener) {
        // Not meant to be called by a client

    public static final ConfigurationRole LEGACY = createNonDeprecatedRole("Legacy", true, true, true);

    /**
     * Meant to be used only for consumption by other projects.
     */
    public static final ConfigurationRole CONSUMABLE = createNonDeprecatedRole("Consumable", true, false, false);

    /**
     * Meant to be used only for resolving dependencies.
     */

 public:
  Tf2XlaTypeConverter();
};

/// Adds the TF to XLA via TF2XLA rewrite patterns to the pattern list.
/// `prefer_tf2xla` means an op will be included iff it is not in
/// `MlirLegalizedUnderPreferTf2XlaSet`. `!prefer_tf2xla` mean an op will be
/// included if there is no native MLIR legalization for the op.
void PopulateLegalizeTfWithTf2XlaPatterns(llvm::StringRef device_type,

configurations {
    // A configuration meant for consumers that need the API of this component
    exposedApi {
        // This configuration is an "outgoing" configuration, it's not meant to be resolved
        canBeResolved = false
        // As an outgoing configuration, explain that consumers may want to consume it
        assert canBeConsumed
    }
    // A configuration meant for consumers that need the implementation of this component

        This means we actually have to execute the code block in order to find the rule information within.
        This is also problematic because it means we have to serialize this information into some form that fits into annotations.

        Later, we will extract all the “up-front” information we need to know during compile time.