import { HttpParameterCodec } from "@angular/common/http";
import type { ChangeDetectorRef, ElementRef } from "@angular/core";
import type { MatOption } from "@angular/material/core";
import type { MatSelect as MatSelectBase, MatSelectChange as MatSelectChangeEvent } from "@angular/material/select";
/**
 * Generic representation of Angular SimpleChange
 */
export declare type SimpleChange<TValue> = {
    previousValue: TValue;
    currentValue: TValue;
    firstChange: boolean;
    isFirstChange(): boolean;
};
/**
 * Generic representation of Angular SimpleChanges
 */
export declare type SimpleChanges<TComponent> = {
    [key in keyof TComponent]?: SimpleChange<TComponent[key]>;
};
/**
 * Patches Angular HttpParams "toString()" method to handle empty array query params properly
 */
export declare function patchAngularHttpParams(): void;
export declare class DefaultHttpParamEncoder implements HttpParameterCodec {
    encodeKey(key: string): string;
    encodeValue(value: string): string;
    decodeKey(key: string): string;
    decodeValue(value: string): string;
}
declare module "@angular/forms" {
    interface FormControl<TValue = any> {
        _onChange: ((newValue: any, emitModelEvent: boolean) => void)[];
        _onDisabledChange: ((disabled: boolean) => any)[];
    }
}
declare module "@angular/cdk/collections" {
    interface SelectionModel<T> {
        compareBy?: ((o1: T) => any) | undefined;
        values: Map<any, T>;
    }
}
declare module "@angular/material/core" {
    interface AppMatOption<T = any> extends Omit<MatOption<T>, "_element" | "_selected" | "_changeDetectorRef"> {
        _element: ElementRef<HTMLElement>;
        _selected: boolean;
        _changeDetectorRef: ChangeDetectorRef;
    }
}
declare module "@angular/material/select" {
    interface AppMatSelect extends Omit<MatSelectBase, "_propagateChanges" | "_changeDetectorRef"> {
        _value: any;
        _changeDetectorRef: ChangeDetectorRef;
        panel: ElementRef<HTMLElement>;
        _canOpen(): boolean;
        _propagateChanges(fallbackValue?: any): void;
        _onSelect(matOption: MatOption<any>, isUserInput: boolean): void;
        _getChangeEvent(value: any): MatSelectChangeEvent;
        _initializeSelection(): void;
    }
}