import { AbstractControl, FormArray, FormControl, FormGroup } from '@angular/forms';
export declare const markFormGroupTouched: (FormControls: {
    [key: string]: AbstractControl;
} | AbstractControl[]) => void;
export declare const markControlsTouched: (group: FormGroup | FormArray) => void;
export declare const validateEmail: (c: FormControl) => {
    validateEmail: {
        valid: boolean;
    };
};
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