import type { GsubGpos } from "@ot-builder/ot-layout";
export interface LayoutCfgProps {
    gdefWriteTrick?: number;
    lookupWriteTricks?: Map<GsubGpos.LookupProp, LookupWriteTrick>;
}
export interface LayoutCfg {
    layout: LayoutCfgProps;
}
export interface LayoutCfgPt {
    layout?: Partial<LayoutCfgProps>;
}
export declare const DefaultLayoutProps: LayoutCfgProps;
export declare enum LookupWriteTrick {
    None = 0,
    AvoidUseExtension = 1,
    AvoidBreakSubtable = 2,
    UseFlatCoverage = 4,
    UseFastCoverage = 8,
    AvoidUsingContextualLookup = 16,
    ContextualForceFormat3 = 65536,
    ContextualForceFormat2 = 131072
}
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