refactor: move brother_node development artifact to dev/test-nodes subdirectory

Development Artifact Cleanup:
✅ BROTHER_NODE REORGANIZATION: Moved development test node to appropriate location
- dev/test-nodes/brother_node/: Moved from root directory for better organization
- Contains development configuration, test logs, and test chain data
- No impact on production systems - purely development/testing artifact

✅ DEVELOPMENT ARTIFACTS IDENTIFIED:
- Chain ID: aitbc-brother-chain (test/development chain)
- Ports: 8010 (P2P) and 8011 (RPC) - different from production
- Environment: .env file with test configuration
- Logs: rpc.log and node.log from development testing session (March 15, 2026)

✅ ROOT DIRECTORY CLEANUP: Removed development clutter from production directory
- brother_node/ moved to dev/test-nodes/brother_node/
- Root directory now contains only production-ready components
- Development artifacts properly organized in dev/ subdirectory

DIRECTORY STRUCTURE IMPROVEMENT:
📁 dev/test-nodes/: Development and testing node configurations
🏗️ Root Directory: Clean production structure with only essential components
🧪 Development Isolation: Test environments separated from production

BENEFITS:
✅ Clean Production Directory: No development artifacts in root
✅ Better Organization: Development nodes grouped in dev/ subdirectory
✅ Clear Separation: Production vs development environments clearly distinguished
✅ Maintainability: Easier to identify and manage development components

RESULT: Successfully moved brother_node development artifact to dev/test-nodes/ subdirectory, cleaning up the root directory while preserving development testing environment for future use.

dev/env/node_modules/ethers/src.ts/utils/errors.ts

@@ -0,0 +1,797 @@
+/**
+ *  All errors in ethers include properties to ensure they are both
+ *  human-readable (i.e. ``.message``) and machine-readable (i.e. ``.code``).
+ *
+ *  The [[isError]] function can be used to check the error ``code`` and
+ *  provide a type guard for the properties present on that error interface.
+ *
+ *  @_section: api/utils/errors:Errors  [about-errors]
+ */
+
+import { version } from "../_version.js";
+
+import { defineProperties } from "./properties.js";
+
+import type {
+    TransactionRequest, TransactionReceipt, TransactionResponse
+} from "../providers/index.js";
+
+import type { FetchRequest, FetchResponse } from "./fetch.js";
+
+/**
+ *  An error may contain additional properties, but those must not
+ *  conflict with any implicit properties.
+ */
+export type ErrorInfo<T> = Omit<T, "code" | "name" | "message" | "shortMessage"> & { shortMessage?: string };
+
+
+function stringify(value: any, seen?: Set<any>): any {
+    if (value == null) { return "null"; }
+
+    if (seen == null) { seen = new Set(); }
+    if (typeof(value) === "object") {
+        if (seen.has(value)) { return "[Circular]"; }
+        seen.add(value);
+    }
+
+    if (Array.isArray(value)) {
+        return "[ " + (value.map((v) => stringify(v, seen))).join(", ") + " ]";
+    }
+
+    if (value instanceof Uint8Array) {
+        const HEX = "0123456789abcdef";
+        let result = "0x";
+        for (let i = 0; i < value.length; i++) {
+            result += HEX[value[i] >> 4];
+            result += HEX[value[i] & 0xf];
+        }
+        return result;
+    }
+
+    if (typeof(value) === "object" && typeof(value.toJSON) === "function") {
+        return stringify(value.toJSON(), seen);
+    }
+
+    switch (typeof(value)) {
+        case "boolean": case "number": case "symbol":
+            return value.toString();
+        case "bigint":
+            return BigInt(value).toString();
+        case "string":
+            return JSON.stringify(value);
+        case "object": {
+            const keys = Object.keys(value);
+            keys.sort();
+            return "{ " + keys.map((k) => `${ stringify(k, seen) }: ${ stringify(value[k], seen) }`).join(", ") + " }";
+        }
+    }
+
+    return `[ COULD NOT SERIALIZE ]`;
+}
+
+/**
+ *  All errors emitted by ethers have an **ErrorCode** to help
+ *  identify and coalesce errors to simplify programmatic analysis.
+ *
+ *  Each **ErrorCode** is the %%code%% proerty of a coresponding
+ *  [[EthersError]].
+ *
+ *  **Generic Errors**
+ *
+ *  **``"UNKNOWN_ERROR"``** - see [[UnknownError]]
+ *
+ *  **``"NOT_IMPLEMENTED"``** - see [[NotImplementedError]]
+ *
+ *  **``"UNSUPPORTED_OPERATION"``** - see [[UnsupportedOperationError]]
+ *
+ *  **``"NETWORK_ERROR"``** - see [[NetworkError]]
+ *
+ *  **``"SERVER_ERROR"``** - see [[ServerError]]
+ *
+ *  **``"TIMEOUT"``** - see [[TimeoutError]]
+ *
+ *  **``"BAD_DATA"``** - see [[BadDataError]]
+ *
+ *  **``"CANCELLED"``** - see [[CancelledError]]
+ *
+ *  **Operational Errors**
+ *
+ *  **``"BUFFER_OVERRUN"``** - see [[BufferOverrunError]]
+ *
+ *  **``"NUMERIC_FAULT"``** - see [[NumericFaultError]]
+ *
+ *  **Argument Errors**
+ *
+ *  **``"INVALID_ARGUMENT"``** - see [[InvalidArgumentError]]
+ *
+ *  **``"MISSING_ARGUMENT"``** - see [[MissingArgumentError]]
+ *
+ *  **``"UNEXPECTED_ARGUMENT"``** - see [[UnexpectedArgumentError]]
+ *
+ *  **``"VALUE_MISMATCH"``** - //unused//
+ *
+ *  **Blockchain Errors**
+ *
+ *  **``"CALL_EXCEPTION"``** - see [[CallExceptionError]]
+ *
+ *  **``"INSUFFICIENT_FUNDS"``** - see [[InsufficientFundsError]]
+ *
+ *  **``"NONCE_EXPIRED"``** - see [[NonceExpiredError]]
+ *
+ *  **``"REPLACEMENT_UNDERPRICED"``** - see [[ReplacementUnderpricedError]]
+ *
+ *  **``"TRANSACTION_REPLACED"``** - see [[TransactionReplacedError]]
+ *
+ *  **``"UNCONFIGURED_NAME"``** - see [[UnconfiguredNameError]]
+ *
+ *  **``"OFFCHAIN_FAULT"``** - see [[OffchainFaultError]]
+ *
+ *  **User Interaction Errors**
+ *
+ *  **``"ACTION_REJECTED"``** - see [[ActionRejectedError]]
+ */
+export type ErrorCode =
+
+    // Generic Errors
+    "UNKNOWN_ERROR" | "NOT_IMPLEMENTED" | "UNSUPPORTED_OPERATION" |
+    "NETWORK_ERROR" | "SERVER_ERROR" | "TIMEOUT" | "BAD_DATA" |
+    "CANCELLED" |
+
+    // Operational Errors
+    "BUFFER_OVERRUN" |  "NUMERIC_FAULT" |
+
+    // Argument Errors
+    "INVALID_ARGUMENT" | "MISSING_ARGUMENT" | "UNEXPECTED_ARGUMENT" |
+    "VALUE_MISMATCH" |
+
+    // Blockchain Errors
+    "CALL_EXCEPTION" | "INSUFFICIENT_FUNDS" | "NONCE_EXPIRED" |
+    "REPLACEMENT_UNDERPRICED" | "TRANSACTION_REPLACED" |
+    "UNCONFIGURED_NAME" | "OFFCHAIN_FAULT" |
+
+    // User Interaction
+    "ACTION_REJECTED"
+;
+
+/**
+ *  All errors in Ethers include properties to assist in
+ *  machine-readable errors.
+ */
+export interface EthersError<T extends ErrorCode = ErrorCode> extends Error {
+    /**
+     *  The string error code.
+     */
+    code: ErrorCode;
+
+    /**
+     *  A short message describing the error, with minimal additional
+     *  details.
+     */
+    shortMessage: string;
+
+    /**
+     *  Additional info regarding the error that may be useful.
+     *
+     *  This is generally helpful mostly for human-based debugging.
+     */
+    info?: Record<string, any>;
+
+    /**
+     *  Any related error.
+     */
+    error?: Error;
+}
+
+// Generic Errors
+
+/**
+ *  This Error is a catch-all for when there is no way for Ethers to
+ *  know what the underlying problem is.
+ */
+export interface UnknownError extends EthersError<"UNKNOWN_ERROR"> {
+    [ key: string ]: any;
+}
+
+/**
+ *  This Error is mostly used as a stub for functionality that is
+ *  intended for the future, but is currently not implemented.
+ */
+export interface NotImplementedError extends EthersError<"NOT_IMPLEMENTED"> {
+    /**
+     *  The attempted operation.
+     */
+    operation: string;
+}
+
+/**
+ *  This Error indicates that the attempted operation is not supported.
+ *
+ *  This could range from a specific JSON-RPC end-point not supporting
+ *  a feature to a specific configuration of an object prohibiting the
+ *  operation.
+ *
+ *  For example, a [[Wallet]] with no connected [[Provider]] is unable
+ *  to send a transaction.
+ */
+export interface UnsupportedOperationError extends EthersError<"UNSUPPORTED_OPERATION"> {
+    /**
+     *  The attempted operation.
+     */
+    operation: string;
+}
+
+/**
+ *  This Error indicates a problem connecting to a network.
+ */
+export interface NetworkError extends EthersError<"NETWORK_ERROR"> {
+    /**
+     *  The network event.
+     */
+    event: string;
+}
+
+/**
+ *  This Error indicates there was a problem fetching a resource from
+ *  a server.
+ */
+export interface ServerError extends EthersError<"SERVER_ERROR"> {
+    /**
+     *  The requested resource.
+     */
+    request: FetchRequest | string;
+
+    /**
+     *  The response received from the server, if available.
+     */
+    response?: FetchResponse;
+}
+
+/**
+ *  This Error indicates that the timeout duration has expired and
+ *  that the operation has been implicitly cancelled.
+ *
+ *  The side-effect of the operation may still occur, as this
+ *  generally means a request has been sent and there has simply
+ *  been no response to indicate whether it was processed or not.
+ */
+export interface TimeoutError extends EthersError<"TIMEOUT"> {
+    /**
+     *  The attempted operation.
+     */
+    operation: string;
+
+    /**
+     *  The reason.
+     */
+    reason: string;
+
+    /**
+     *  The resource request, if available.
+     */
+    request?: FetchRequest;
+}
+
+/**
+ *  This Error indicates that a provided set of data cannot
+ *  be correctly interpreted.
+ */
+export interface BadDataError extends EthersError<"BAD_DATA"> {
+    /**
+     *  The data.
+     */
+    value: any;
+}
+
+/**
+ *  This Error indicates that the operation was cancelled by a
+ *  programmatic call, for example to ``cancel()``.
+ */
+export interface CancelledError extends EthersError<"CANCELLED"> {
+}
+
+
+// Operational Errors
+
+/**
+ *  This Error indicates an attempt was made to read outside the bounds
+ *  of protected data.
+ *
+ *  Most operations in Ethers are protected by bounds checks, to mitigate
+ *  exploits when parsing data.
+ */
+export interface BufferOverrunError extends EthersError<"BUFFER_OVERRUN"> {
+    /**
+     *  The buffer that was overrun.
+     */
+    buffer: Uint8Array;
+
+    /**
+     *  The length of the buffer.
+     */
+    length: number;
+
+    /**
+     *  The offset that was requested.
+     */
+    offset: number;
+}
+
+/**
+ *  This Error indicates an operation which would result in incorrect
+ *  arithmetic output has occurred.
+ *
+ *  For example, trying to divide by zero or using a ``uint8`` to store
+ *  a negative value.
+ */
+export interface NumericFaultError extends EthersError<"NUMERIC_FAULT"> {
+    /**
+     *  The attempted operation.
+     */
+    operation: string;
+
+    /**
+     *  The fault reported.
+     */
+    fault: string;
+
+    /**
+     *  The value the operation was attempted against.
+     */
+    value: any;
+}
+
+
+// Argument Errors
+
+/**
+ *  This Error indicates an incorrect type or value was passed to
+ *  a function or method.
+ */
+export interface InvalidArgumentError extends EthersError<"INVALID_ARGUMENT"> {
+    /**
+     *  The name of the argument.
+     */
+    argument: string;
+
+    /**
+     *  The value that was provided.
+     */
+    value: any;
+
+    info?: Record<string, any>
+}
+
+/**
+ *  This Error indicates there were too few arguments were provided.
+ */
+export interface MissingArgumentError extends EthersError<"MISSING_ARGUMENT"> {
+    /**
+     *  The number of arguments received.
+     */
+    count: number;
+
+    /**
+     *  The number of arguments expected.
+     */
+    expectedCount: number;
+}
+
+/**
+ *  This Error indicates too many arguments were provided.
+ */
+export interface UnexpectedArgumentError extends EthersError<"UNEXPECTED_ARGUMENT"> {
+    /**
+     *  The number of arguments received.
+     */
+    count: number;
+
+    /**
+     *  The number of arguments expected.
+     */
+    expectedCount: number;
+}
+
+
+// Blockchain Errors
+
+/**
+ *  The action that resulted in the call exception.
+ */
+export type CallExceptionAction = "call" | "estimateGas" | "getTransactionResult" | "sendTransaction" | "unknown";
+
+/**
+ *  The related transaction that caused the error.
+ */
+export type CallExceptionTransaction = {
+    to: null | string;
+    from?: string;
+    data: string;
+};
+
+/**
+ *  This **Error** indicates a transaction reverted.
+ */
+export interface CallExceptionError extends EthersError<"CALL_EXCEPTION"> {
+
+    /**
+     *  The action being performed when the revert was encountered.
+     */
+    action: CallExceptionAction;
+
+    /**
+     *  The revert data returned.
+     */
+    data: null | string;
+
+    /**
+     *  A human-readable representation of data, if possible.
+     */
+    reason: null | string;
+
+    /**
+     *  The transaction that triggered the exception.
+     */
+    transaction: CallExceptionTransaction,
+
+    /**
+     *  The contract invocation details, if available.
+     */
+    invocation: null | {
+        method: string;
+        signature: string;
+        args: Array<any>;
+    }
+
+    /**
+     *  The built-in or custom revert error, if available
+     */
+    revert: null | {
+        signature: string;
+        name: string;
+        args: Array<any>;
+    }
+
+    /**
+     *  If the error occurred in a transaction that was mined
+     *  (with a status of ``0``), this is the receipt.
+     */
+    receipt?: TransactionReceipt;   // @TODO: in v7, make this `null | TransactionReceipt`
+}
+
+
+/**
+ *  The sending account has insufficient funds to cover the
+ *  entire transaction cost.
+ */
+export interface InsufficientFundsError extends EthersError<"INSUFFICIENT_FUNDS"> {
+    /**
+     *  The transaction.
+     */
+    transaction: TransactionRequest;
+}
+
+/**
+ *  The sending account has already used this nonce in a
+ *  transaction that has been included.
+ */
+export interface NonceExpiredError extends EthersError<"NONCE_EXPIRED"> {
+    /**
+     *  The transaction.
+     */
+    transaction: TransactionRequest;
+}
+
+/**
+ *  A CCIP-read exception, which cannot be recovered from or
+ *  be further processed.
+ */
+export interface OffchainFaultError extends EthersError<"OFFCHAIN_FAULT"> {
+    /**
+     *  The transaction.
+     */
+    transaction?: TransactionRequest;
+
+    /**
+     *  The reason the CCIP-read failed.
+     */
+    reason: string;
+}
+
+/**
+ *  An attempt was made to replace a transaction, but with an
+ *  insufficient additional fee to afford evicting the old
+ *  transaction from the memory pool.
+ */
+export interface ReplacementUnderpricedError extends EthersError<"REPLACEMENT_UNDERPRICED"> {
+    /**
+     *  The transaction.
+     */
+    transaction: TransactionRequest;
+}
+
+/**
+ *  A pending transaction was replaced by another.
+ */
+export interface TransactionReplacedError extends EthersError<"TRANSACTION_REPLACED"> {
+    /**
+     *  If the transaction was cancelled, such that the original
+     *  effects of the transaction cannot be assured.
+     */
+    cancelled: boolean;
+
+    /**
+     *  The reason the transaction was replaced.
+     */
+    reason: "repriced" | "cancelled" | "replaced";
+
+    /**
+     *  The hash of the replaced transaction.
+     */
+    hash: string;
+
+    /**
+     *  The transaction that replaced the transaction.
+     */
+    replacement: TransactionResponse;
+
+    /**
+     *  The receipt of the transaction that replace the transaction.
+     */
+    receipt: TransactionReceipt;
+}
+
+/**
+ *  This Error indicates an ENS name was used, but the name has not
+ *  been configured.
+ *
+ *  This could indicate an ENS name is unowned or that the current
+ *  address being pointed to is the [[ZeroAddress]].
+ */
+export interface UnconfiguredNameError extends EthersError<"UNCONFIGURED_NAME"> {
+    /**
+     *  The ENS name that was requested
+     */
+    value: string;
+}
+
+/**
+ *  This Error indicates a request was rejected by the user.
+ *
+ *  In most clients (such as MetaMask), when an operation requires user
+ *  authorization (such as ``signer.sendTransaction``), the client
+ *  presents a dialog box to the user. If the user denies the request
+ *  this error is thrown.
+ */
+export interface ActionRejectedError extends EthersError<"ACTION_REJECTED"> {
+    /**
+     *  The requested action.
+     */
+    action: "requestAccess" | "sendTransaction" | "signMessage" | "signTransaction" | "signTypedData" | "unknown",
+
+    /**
+     *  The reason the action was rejected.
+     *
+     *  If there is already a pending request, some clients may indicate
+     *  there is already a ``"pending"`` action. This prevents an app
+     *  from spamming the user.
+     */
+    reason: "expired" | "rejected" | "pending"
+}
+
+// Coding; converts an ErrorCode its Typed Error
+
+/**
+ *  A conditional type that transforms the [[ErrorCode]] T into
+ *  its EthersError type.
+ *
+ *  @flatworm-skip-docs
+ */
+export type CodedEthersError<T> =
+    T extends "UNKNOWN_ERROR" ? UnknownError:
+    T extends "NOT_IMPLEMENTED" ? NotImplementedError:
+    T extends "UNSUPPORTED_OPERATION" ? UnsupportedOperationError:
+    T extends "NETWORK_ERROR" ? NetworkError:
+    T extends "SERVER_ERROR" ? ServerError:
+    T extends "TIMEOUT" ? TimeoutError:
+    T extends "BAD_DATA" ? BadDataError:
+    T extends "CANCELLED" ? CancelledError:
+
+    T extends "BUFFER_OVERRUN" ? BufferOverrunError:
+    T extends "NUMERIC_FAULT" ? NumericFaultError:
+
+    T extends "INVALID_ARGUMENT" ? InvalidArgumentError:
+    T extends "MISSING_ARGUMENT" ? MissingArgumentError:
+    T extends "UNEXPECTED_ARGUMENT" ? UnexpectedArgumentError:
+
+    T extends "CALL_EXCEPTION" ? CallExceptionError:
+    T extends "INSUFFICIENT_FUNDS" ? InsufficientFundsError:
+    T extends "NONCE_EXPIRED" ? NonceExpiredError:
+    T extends "OFFCHAIN_FAULT" ? OffchainFaultError:
+    T extends "REPLACEMENT_UNDERPRICED" ? ReplacementUnderpricedError:
+    T extends "TRANSACTION_REPLACED" ? TransactionReplacedError:
+    T extends "UNCONFIGURED_NAME" ? UnconfiguredNameError:
+
+    T extends "ACTION_REJECTED" ? ActionRejectedError:
+
+    never;
+
+
+
+/**
+ *  Returns true if the %%error%% matches an error thrown by ethers
+ *  that matches the error %%code%%.
+ *
+ *  In TypeScript environments, this can be used to check that %%error%%
+ *  matches an EthersError type, which means the expected properties will
+ *  be set.
+ *
+ *  @See [ErrorCodes](api:ErrorCode)
+ *  @example
+ *    try {
+ *      // code....
+ *    } catch (e) {
+ *      if (isError(e, "CALL_EXCEPTION")) {
+ *          // The Type Guard has validated this object
+ *          console.log(e.data);
+ *      }
+ *    }
+ */
+export function isError<K extends ErrorCode, T extends CodedEthersError<K>>(error: any, code: K): error is T {
+    return (error && (<EthersError>error).code === code);
+}
+
+/**
+ *  Returns true if %%error%% is a [[CallExceptionError].
+ */
+export function isCallException(error: any): error is CallExceptionError {
+    return isError(error, "CALL_EXCEPTION");
+}
+
+/**
+ *  Returns a new Error configured to the format ethers emits errors, with
+ *  the %%message%%, [[api:ErrorCode]] %%code%% and additional properties
+ *  for the corresponding EthersError.
+ *
+ *  Each error in ethers includes the version of ethers, a
+ *  machine-readable [[ErrorCode]], and depending on %%code%%, additional
+ *  required properties. The error message will also include the %%message%%,
+ *  ethers version, %%code%% and all additional properties, serialized.
+ */
+export function makeError<K extends ErrorCode, T extends CodedEthersError<K>>(message: string, code: K, info?: ErrorInfo<T>): T {
+    let shortMessage = message;
+
+    {
+        const details: Array<string> = [];
+        if (info) {
+            if ("message" in info || "code" in info || "name" in info) {
+                throw new Error(`value will overwrite populated values: ${ stringify(info) }`);
+            }
+            for (const key in info) {
+                if (key === "shortMessage") { continue; }
+                const value = <any>(info[<keyof ErrorInfo<T>>key]);
+//                try {
+                    details.push(key + "=" + stringify(value));
+//                } catch (error: any) {
+//                console.log("MMM", error.message);
+//                    details.push(key + "=[could not serialize object]");
+//                }
+            }
+        }
+        details.push(`code=${ code }`);
+        details.push(`version=${ version }`);
+
+        if (details.length) {
+            message += " (" + details.join(", ") + ")";
+        }
+    }
+
+    let error;
+    switch (code) {
+        case "INVALID_ARGUMENT":
+            error = new TypeError(message);
+            break;
+        case "NUMERIC_FAULT":
+        case "BUFFER_OVERRUN":
+            error = new RangeError(message);
+            break;
+        default:
+            error = new Error(message);
+    }
+
+    defineProperties<EthersError>(<EthersError>error, { code });
+
+    if (info) { Object.assign(error, info); }
+
+    if ((<any>error).shortMessage == null) {
+        defineProperties<EthersError>(<EthersError>error, { shortMessage });
+    }
+
+    return <T>error;
+}
+
+/**
+ *  Throws an EthersError with %%message%%, %%code%% and additional error
+ *  %%info%% when %%check%% is falsish..
+ *
+ *  @see [[api:makeError]]
+ */
+export function assert<K extends ErrorCode, T extends CodedEthersError<K>>(check: unknown, message: string, code: K, info?: ErrorInfo<T>): asserts check {
+    if (!check) { throw makeError(message, code, info); }
+}
+
+
+/**
+ *  A simple helper to simply ensuring provided arguments match expected
+ *  constraints, throwing if not.
+ *
+ *  In TypeScript environments, the %%check%% has been asserted true, so
+ *  any further code does not need additional compile-time checks.
+ */
+export function assertArgument(check: unknown, message: string, name: string, value: unknown): asserts check {
+    assert(check, message, "INVALID_ARGUMENT", { argument: name, value: value });
+}
+
+export function assertArgumentCount(count: number, expectedCount: number, message?: string): void {
+    if (message == null) { message = ""; }
+    if (message) { message = ": " + message; }
+
+    assert(count >= expectedCount, "missing argument" + message, "MISSING_ARGUMENT", {
+        count: count,
+        expectedCount: expectedCount
+    });
+
+    assert(count <= expectedCount, "too many arguments" + message, "UNEXPECTED_ARGUMENT", {
+        count: count,
+        expectedCount: expectedCount
+    });
+}
+
+const _normalizeForms = ["NFD", "NFC", "NFKD", "NFKC"].reduce((accum, form) => {
+    try {
+        // General test for normalize
+        /* c8 ignore start */
+        if ("test".normalize(form) !== "test") { throw new Error("bad"); };
+        /* c8 ignore stop */
+
+        if (form === "NFD") {
+            const check = String.fromCharCode(0xe9).normalize("NFD");
+            const expected = String.fromCharCode(0x65, 0x0301)
+            /* c8 ignore start */
+            if (check !== expected) { throw new Error("broken") }
+            /* c8 ignore stop */
+        }
+
+        accum.push(form);
+    } catch(error) { }
+
+    return accum;
+}, <Array<string>>[]);
+
+/**
+ *  Throws if the normalization %%form%% is not supported.
+ */
+export function assertNormalize(form: string): void {
+    assert(_normalizeForms.indexOf(form) >= 0, "platform missing String.prototype.normalize", "UNSUPPORTED_OPERATION", {
+        operation: "String.prototype.normalize", info: { form }
+    });
+}
+
+/**
+ *  Many classes use file-scoped values to guard the constructor,
+ *  making it effectively private. This facilitates that pattern
+ *  by ensuring the %%givenGaurd%% matches the file-scoped %%guard%%,
+ *  throwing if not, indicating the %%className%% if provided.
+ */
+export function assertPrivate(givenGuard: any, guard: any, className?: string): void {
+    if (className == null) { className = ""; }
+    if (givenGuard !== guard) {
+        let method = className, operation = "new";
+        if (className) {
+            method += ".";
+            operation += " " + className;
+        }
+        assert(false, `private constructor; use ${ method }from* methods`, "UNSUPPORTED_OPERATION", {
+            operation
+        });
+    }
+}