/**
 * Tool: list_tables
 * Returns a simple list of all tables in the database (or filtered by schema)
 */
export interface ListTablesInput {
    schema?: string;
}
export interface TableInfo {
    schema: string;
    table: string;
    type: string;
    row_count: number | null;
    size: string | null;
}
export interface ListTablesOutput {
    tables: TableInfo[];
    total_count: number;
}
/**
 * Lists all tables in the database, optionally filtered by schema
 */
export declare function listTables(input?: ListTablesInput): Promise<ListTablesOutput>;
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