declare module 'sql.js' {
  export type QueryExecResult = {
    columns: string[]
    values: unknown[][]
  }

  export type Statement = {
    run(values?: unknown[]): void
    free(): void
  }

  export type Database = {
    run(sql: string): void
    exec(sql: string): QueryExecResult[]
    prepare(sql: string): Statement
    export(): Uint8Array
  }

  export type SqlJsStatic = {
    Database: new (data?: Uint8Array | Buffer) => Database
  }

  export default function initSqlJs(options?: {
    locateFile?: (file: string) => string
  }): Promise<SqlJsStatic>
}