/** Responsive horizontal layout for the interactive `botmux list` picker. */
export type SessionPickerColumnKey = 'id' | 'bot' | 'title' | 'dir' | 'pid' | 'uptime' | 'status' | 'target';
export interface SessionPickerColumn {
    key: SessionPickerColumnKey;
    width: number;
}
export interface SessionPickerLayout {
    /** Actual terminal width used to build this layout. */
    termWidth: number;
    /** Width reserved for the row/header prefix (`  ❯ ` in normal terminals). */
    prefixWidth: number;
    /** Ordered visible columns. */
    columns: SessionPickerColumn[];
}
/** Total physical width of a rendered header/session line. Exported for invariants/tests. */
export declare function sessionPickerLayoutWidth(layout: SessionPickerLayout): number;
/**
 * Compute a one-physical-line layout for the current terminal width.
 *
 * Wide terminals preserve the picker's historical column widths byte-for-byte.
 * Narrow terminals first shrink columns, then progressively hide lower-value
 * columns. At every width the returned prefix + columns + separators is no
 * wider than the terminal, so vertical viewport accounting remains truthful.
 */
export declare function computeSessionPickerLayout(rawTermWidth: number, multiBot: boolean): SessionPickerLayout;
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