export interface HashMap<T = any> {
    [key: string]: T;
}
export interface Predicate {
    left: Left;
    operator: PredicateOperator;
    value: string;
}
export interface Operation<T = Predicate> {
    operator: OperationOperator;
    predicates: T[];
}
export interface Left {
    name: string;
    type: LeftType;
}
export declare enum PredicateOperator {
    Equal = "=",
    GreaterThan = ">",
    GreaterThanOrEqual = ">=",
    LessThan = "<",
    LessThanOrEqual = "<=",
    NotEqual = "!="
}
export declare enum OperationOperator {
    And = "and",
    Or = "or"
}
export declare enum LeftType {
    Identifier = "identifier"
}
export declare type AST = Operation | Predicate;