export interface ASTNode {
    type: string;
}
export interface LiteralNode extends ASTNode {
    type: "Literal";
    value: string;
}
export interface BinaryOpNode extends ASTNode {
    type: "BinaryOp";
    operator: string;
    left: ASTNode;
    right: ASTNode;
}
export interface FractionNode extends ASTNode {
    type: "Fraction";
    numerator: ASTNode;
    denominator: ASTNode;
    withBar: boolean;
}
export interface RootNode extends ASTNode {
    type: "Root";
    radicand: ASTNode;
}
export interface SuperscriptNode extends ASTNode {
    type: "Superscript";
    base: ASTNode;
    exponent: ASTNode;
}
export interface SubscriptNode extends ASTNode {
    type: "Subscript";
    base: ASTNode;
    sub: ASTNode;
}
export interface IntegralNode extends ASTNode {
    type: "Integral";
    variant: "int" | "oint";
    lower?: ASTNode;
    upper?: ASTNode;
    body?: ASTNode;
}
export interface SummationNode extends ASTNode {
    type: "Summation";
    lower?: ASTNode;
    upper?: ASTNode;
    body?: ASTNode;
}
export interface DecoratedNode extends ASTNode {
    type: "Decorated";
    decoType: string;
    child: ASTNode;
}
/** \begin{pmatrix}...\end{pmatrix} or \begin{cases}... => one node */
export interface BeginEnvNode extends ASTNode {
    type: "BeginEnv";
    envName: string;
    rows: ASTNode[][];
}
/** ( ... ), { ... }, \left(\right) => bracket node */
export interface BracketNode extends ASTNode {
    type: "Bracket";
    leftDelim: string;
    rightDelim: string;
    content: ASTNode;
}
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