Type Alias MutationNode

MutationNode:
    | {
        type: "set_prop"
        | "add_prop"
        | "sub_prop";
        target: string;
        property: string;
        value: ExprNode;
    }
    | { type: "add_tag"
    | "remove_tag"; target: string; tag: string }
    | {
        type: "if";
        condition: DegreeCond;
        then: MutationNode[];
        else?: MutationNode[];
    }
    | {
        type: "foreach_target";
        select: { tag: string; limit?: number };
        mutations: MutationNode[];
    }
    | { type: "repeat"; count: number; mutations: MutationNode[] }