chore(parameters): change declare client param

Author: dreamorosi

packages/parameters/src/appconfig/AppConfigProvider.ts

@@ -182,7 +182,7 @@ import { APPCONFIG_TOKEN_EXPIRATION } from '../constants.js';
  * For more usage examples, see [our documentation](https://docs.powertools.aws.dev/lambda/typescript/latest/utilities/parameters/).
  */
 class AppConfigProvider extends BaseProvider {
-  public client!: AppConfigDataClient;
+  public declare client: AppConfigDataClient;
   protected configurationTokenStore = new Map<
     string,
     { value: string; expiration: number }

packages/parameters/src/dynamodb/DynamoDBProvider.ts

@@ -235,7 +235,7 @@ import type { JSONValue } from '@aws-lambda-powertools/commons/types';
  * For more usage examples, see [our documentation](https://docs.powertools.aws.dev/lambda/typescript/latest/utilities/parameters/).
  */
 class DynamoDBProvider extends BaseProvider {
-  public client!: DynamoDBClient;
+  public declare client: DynamoDBClient;
   protected keyAttr = 'id';
   protected sortAttr = 'sk';
   protected tableName: string;

packages/parameters/src/secrets/SecretsProvider.ts

@@ -145,7 +145,7 @@ import type {
  * @see https://docs.powertools.aws.dev/lambda/typescript/latest/utilities/parameters/
  */
 class SecretsProvider extends BaseProvider {
-  public client!: SecretsManagerClient;
+  public declare client: SecretsManagerClient;
 
   /**
    * It initializes the SecretsProvider class.

packages/parameters/src/ssm/SSMProvider.ts

@@ -267,7 +267,7 @@ import type { PaginationConfiguration } from '@aws-sdk/types';
  * For more usage examples, see [our documentation](https://docs.powertools.aws.dev/lambda/typescript/latest/utilities/parameters/).
  */
 class SSMProvider extends BaseProvider {
-  public client!: SSMClient;
+  public declare client: SSMClient;
   protected errorsKey = '_errors';
   protected maxGetParametersItems = 10;
 

packages/parameters/tests/unit/BaseProvider.test.ts

@@ -13,10 +13,7 @@ import {
 import { DEFAULT_MAX_AGE_SECS } from '../../src/constants.js';
 import type { EnvironmentVariablesService } from '../../src/config/EnvironmentVariablesService.js';
 import { ExpirableValue } from '../../src/base/ExpirableValue.js';
-import {
-  GetParameterError,
-  TransformParameterError,
-} from '../../src/errors.js';
+import { GetParameterError, TransformParameterError } from '../../src/index.js';
 import { toBase64 } from '@aws-sdk/util-base64-node';
 
 const encoder = new TextEncoder();