import { Command as $Command } from "@smithy/smithy-client";
import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { CodeCommitClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../CodeCommitClient";
import type { DescribePullRequestEventsInput, DescribePullRequestEventsOutput } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
export { $Command };
/**
 * @public
 *
 * The input for {@link DescribePullRequestEventsCommand}.
 */
export interface DescribePullRequestEventsCommandInput extends DescribePullRequestEventsInput {
}
/**
 * @public
 *
 * The output of {@link DescribePullRequestEventsCommand}.
 */
export interface DescribePullRequestEventsCommandOutput extends DescribePullRequestEventsOutput, __MetadataBearer {
}
declare const DescribePullRequestEventsCommand_base: {
    new (input: DescribePullRequestEventsCommandInput): import("@smithy/smithy-client").CommandImpl<DescribePullRequestEventsCommandInput, DescribePullRequestEventsCommandOutput, CodeCommitClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    new (input: DescribePullRequestEventsCommandInput): import("@smithy/smithy-client").CommandImpl<DescribePullRequestEventsCommandInput, DescribePullRequestEventsCommandOutput, CodeCommitClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions;
};
/**
 * <p>Returns information about one or more pull request events.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { CodeCommitClient, DescribePullRequestEventsCommand } from "@aws-sdk/client-codecommit"; // ES Modules import
 * // const { CodeCommitClient, DescribePullRequestEventsCommand } = require("@aws-sdk/client-codecommit"); // CommonJS import
 * // import type { CodeCommitClientConfig } from "@aws-sdk/client-codecommit";
 * const config = {}; // type is CodeCommitClientConfig
 * const client = new CodeCommitClient(config);
 * const input = { // DescribePullRequestEventsInput
 *   pullRequestId: "STRING_VALUE", // required
 *   pullRequestEventType: "PULL_REQUEST_CREATED" || "PULL_REQUEST_STATUS_CHANGED" || "PULL_REQUEST_SOURCE_REFERENCE_UPDATED" || "PULL_REQUEST_MERGE_STATE_CHANGED" || "PULL_REQUEST_APPROVAL_RULE_CREATED" || "PULL_REQUEST_APPROVAL_RULE_UPDATED" || "PULL_REQUEST_APPROVAL_RULE_DELETED" || "PULL_REQUEST_APPROVAL_RULE_OVERRIDDEN" || "PULL_REQUEST_APPROVAL_STATE_CHANGED",
 *   actorArn: "STRING_VALUE",
 *   nextToken: "STRING_VALUE",
 *   maxResults: Number("int"),
 * };
 * const command = new DescribePullRequestEventsCommand(input);
 * const response = await client.send(command);
 * // { // DescribePullRequestEventsOutput
 * //   pullRequestEvents: [ // PullRequestEventList // required
 * //     { // PullRequestEvent
 * //       pullRequestId: "STRING_VALUE",
 * //       eventDate: new Date("TIMESTAMP"),
 * //       pullRequestEventType: "PULL_REQUEST_CREATED" || "PULL_REQUEST_STATUS_CHANGED" || "PULL_REQUEST_SOURCE_REFERENCE_UPDATED" || "PULL_REQUEST_MERGE_STATE_CHANGED" || "PULL_REQUEST_APPROVAL_RULE_CREATED" || "PULL_REQUEST_APPROVAL_RULE_UPDATED" || "PULL_REQUEST_APPROVAL_RULE_DELETED" || "PULL_REQUEST_APPROVAL_RULE_OVERRIDDEN" || "PULL_REQUEST_APPROVAL_STATE_CHANGED",
 * //       actorArn: "STRING_VALUE",
 * //       pullRequestCreatedEventMetadata: { // PullRequestCreatedEventMetadata
 * //         repositoryName: "STRING_VALUE",
 * //         sourceCommitId: "STRING_VALUE",
 * //         destinationCommitId: "STRING_VALUE",
 * //         mergeBase: "STRING_VALUE",
 * //       },
 * //       pullRequestStatusChangedEventMetadata: { // PullRequestStatusChangedEventMetadata
 * //         pullRequestStatus: "OPEN" || "CLOSED",
 * //       },
 * //       pullRequestSourceReferenceUpdatedEventMetadata: { // PullRequestSourceReferenceUpdatedEventMetadata
 * //         repositoryName: "STRING_VALUE",
 * //         beforeCommitId: "STRING_VALUE",
 * //         afterCommitId: "STRING_VALUE",
 * //         mergeBase: "STRING_VALUE",
 * //       },
 * //       pullRequestMergedStateChangedEventMetadata: { // PullRequestMergedStateChangedEventMetadata
 * //         repositoryName: "STRING_VALUE",
 * //         destinationReference: "STRING_VALUE",
 * //         mergeMetadata: { // MergeMetadata
 * //           isMerged: true || false,
 * //           mergedBy: "STRING_VALUE",
 * //           mergeCommitId: "STRING_VALUE",
 * //           mergeOption: "FAST_FORWARD_MERGE" || "SQUASH_MERGE" || "THREE_WAY_MERGE",
 * //         },
 * //       },
 * //       approvalRuleEventMetadata: { // ApprovalRuleEventMetadata
 * //         approvalRuleName: "STRING_VALUE",
 * //         approvalRuleId: "STRING_VALUE",
 * //         approvalRuleContent: "STRING_VALUE",
 * //       },
 * //       approvalStateChangedEventMetadata: { // ApprovalStateChangedEventMetadata
 * //         revisionId: "STRING_VALUE",
 * //         approvalStatus: "APPROVE" || "REVOKE",
 * //       },
 * //       approvalRuleOverriddenEventMetadata: { // ApprovalRuleOverriddenEventMetadata
 * //         revisionId: "STRING_VALUE",
 * //         overrideStatus: "OVERRIDE" || "REVOKE",
 * //       },
 * //     },
 * //   ],
 * //   nextToken: "STRING_VALUE",
 * // };
 *
 * ```
 *
 * @param DescribePullRequestEventsCommandInput - {@link DescribePullRequestEventsCommandInput}
 * @returns {@link DescribePullRequestEventsCommandOutput}
 * @see {@link DescribePullRequestEventsCommandInput} for command's `input` shape.
 * @see {@link DescribePullRequestEventsCommandOutput} for command's `response` shape.
 * @see {@link CodeCommitClientResolvedConfig | config} for CodeCommitClient's `config` shape.
 *
 * @throws {@link ActorDoesNotExistException} (client fault)
 *  <p>The specified Amazon Resource Name (ARN) does not exist in the Amazon Web Services account.</p>
 *
 * @throws {@link EncryptionIntegrityChecksFailedException} (server fault)
 *  <p>An encryption integrity check failed.</p>
 *
 * @throws {@link EncryptionKeyAccessDeniedException} (client fault)
 *  <p>An encryption key could not be accessed.</p>
 *
 * @throws {@link EncryptionKeyDisabledException} (client fault)
 *  <p>The encryption key is disabled.</p>
 *
 * @throws {@link EncryptionKeyNotFoundException} (client fault)
 *  <p>No encryption key was found.</p>
 *
 * @throws {@link EncryptionKeyUnavailableException} (client fault)
 *  <p>The encryption key is not available.</p>
 *
 * @throws {@link InvalidActorArnException} (client fault)
 *  <p>The Amazon Resource Name (ARN) is not valid. Make sure that you have provided the full ARN for the user who initiated the change for the pull request,
 *             and then try again.</p>
 *
 * @throws {@link InvalidContinuationTokenException} (client fault)
 *  <p>The specified continuation token is not valid.</p>
 *
 * @throws {@link InvalidMaxResultsException} (client fault)
 *  <p>The specified number of maximum results is not valid.</p>
 *
 * @throws {@link InvalidPullRequestEventTypeException} (client fault)
 *  <p>The pull request event type is not valid. </p>
 *
 * @throws {@link InvalidPullRequestIdException} (client fault)
 *  <p>The pull request ID is not valid. Make sure that you have provided the full ID and that the pull request is in the specified repository, and then try again.</p>
 *
 * @throws {@link PullRequestDoesNotExistException} (client fault)
 *  <p>The pull request ID could not be found. Make sure that you have specified the correct repository name and pull request ID, and then try again.</p>
 *
 * @throws {@link PullRequestIdRequiredException} (client fault)
 *  <p>A pull request ID is required, but none was provided.</p>
 *
 * @throws {@link CodeCommitServiceException}
 * <p>Base exception class for all service exceptions from CodeCommit service.</p>
 *
 *
 * @public
 */
export declare class DescribePullRequestEventsCommand extends DescribePullRequestEventsCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: DescribePullRequestEventsInput;
            output: DescribePullRequestEventsOutput;
        };
        sdk: {
            input: DescribePullRequestEventsCommandInput;
            output: DescribePullRequestEventsCommandOutput;
        };
    };
}