import * as React from 'react';
export interface PopoverHeaderProps extends Omit<React.HTMLProps<HTMLHeadingElement>, 'size'> {
    /** Content of the popover header. */
    children: React.ReactNode;
    /** Indicates the header contains an icon. */
    icon?: React.ReactNode;
    /** Class to be applied to the header. */
    className?: string;
    /** Heading level of the header title */
    titleHeadingLevel?: 'h1' | 'h2' | 'h3' | 'h4' | 'h5' | 'h6';
    /** Severity variants for an alert popover. This modifies the color of the header to match the severity. */
    alertSeverityVariant?: 'custom' | 'info' | 'warning' | 'success' | 'danger';
    /** Id of the header */
    id?: string;
    /** Text announced by screen reader when alert severity variant is set to indicate severity level */
    alertSeverityScreenReaderText?: string;
}
export declare const PopoverHeader: React.FunctionComponent<PopoverHeaderProps>;
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