export type HumanBoneNames = 'hips' | 'spine' | 'chest' | 'neck' | 'head' | 'leftUpperLeg' | 'leftLowerLeg' | 'leftFoot' | 'leftToes' | 'rightUpperLeg' | 'rightLowerLeg' | 'rightFoot' | 'rightToes' | 'leftShoulder' | 'leftUpperArm' | 'leftLowerArm' | 'leftHand' | 'rightShoulder' | 'rightUpperArm' | 'rightLowerArm' | 'rightHand';
export type NodeId = number;
export type ExpressionPreset = 'happy' | 'angry' | 'sad' | 'relaxed' | 'surprised' | 'aa' | 'ih' | 'ou' | 'ee' | 'oh' | 'blink' | 'blinkLeft' | 'blinkRight' | 'neutral';
export interface VRMC_vrm_animation {
    specVersion: string;
    humanoid?: {
        humanBones: Record<HumanBoneNames, {
            node: number;
        }>;
    };
    expressions?: {
        preset?: Record<ExpressionPreset, {
            node: number;
        }>;
        custom?: Record<string, {
            node: number;
        }>;
    };
    lookAt?: {
        node: number;
        offsetFromHeadBone?: [number, number, number];
    };
}
export interface RnM2_VRMC_vrm_animation extends VRMC_vrm_animation {
    humanoidBoneNameMap?: Map<NodeId, HumanBoneNames>;
}