import type { ICredentialsDecrypted, ICredentialTestFunctions, IExecuteFunctions, INodeCredentialTestResult, INodeExecutionData, INodeType, INodeTypeBaseDescription, INodeTypeDescription } from 'n8n-workflow';
export declare class PostgresV1 implements INodeType {
    description: INodeTypeDescription;
    constructor(baseDescription: INodeTypeBaseDescription);
    methods: {
        credentialTest: {
            postgresConnectionTest(this: ICredentialTestFunctions, credential: ICredentialsDecrypted): Promise<INodeCredentialTestResult>;
        };
    };
    execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]>;
}
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