import { OnInit } from '@angular/core';
import { FormGroup, AbstractControl, ValidationErrors } from '@angular/forms';
export declare class MdTextareaComponent implements OnInit {
    field: any;
    form: FormGroup;
    lable: string;
    span: number;
    errors: ValidationErrors;
    errorsKeys: String[];
    fieldControl: AbstractControl;
    constructor();
    ngOnInit(): void;
}