use reflow to migrate from flow to typescript

scm-ui/ui-components/src/Help.tsx

@@ -0,0 +1,29 @@
+import React from 'react';
+import classNames from 'classnames';
+import styled from 'styled-components';
+import Tooltip from './Tooltip';
+import HelpIcon from './HelpIcon';
+
+type Props = {
+  message: string;
+  className?: string;
+};
+
+const HelpTooltip = styled(Tooltip)`
+  position: absolute;
+  padding-left: 3px;
+`;
+
+export default class Help extends React.Component<Props> {
+  render() {
+    const { message, className } = this.props;
+    return (
+      <HelpTooltip
+        className={classNames('is-inline-block', className)}
+        message={message}
+      >
+        <HelpIcon />
+      </HelpTooltip>
+    );
+  }
+}