function isRefsUsage(node) {
      return !!(
        (componentUtil.getParentES6Component(context, node) || componentUtil.getParentES5Component(context, node))
        && node.object.type === 'ThisExpression'
        && node.property.name === 'refs'
      );
    }
Checks if we are using refs
@param {ASTNode} node The AST node being checked.
@returns {boolean} True if we are using refs, false if not.