/**
 * Announces the one place a statement observer does not carry its
 * error-sanitization guarantee.
 *
 * `ManagedConnection.client` is the sanctioned raw-driver door, and it stays
 * raw on purpose — queries issued through it bypass the driver error boundary,
 * so on an observed connection their errors serialize the bind parameters
 * postgres.js attached. Everything reached through `.drizzle` (which is every
 * `pipe()` call, every `pipe.*` write, every transaction and savepoint) is
 * inside the boundary and unaffected.
 *
 * Warns once per database name: this is a design fact about the code holding
 * the connection, not a per-query event, and repeating it would train people to
 * filter it out.
 */
export declare function warnRawClientIsUnsanitized(database: string): void;
/** Test seam: forget which databases have already warned. */
export declare function _resetRawClientWarnings(): void;
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