erence” with employee Family and Medical Leave Act rights. In a provision that “largely mimics thle language of] § 8(a)(1) of the NLRA,” Bachelder v. Am. W. Airlines, 259 F. 3d 1112, 1123 (9th Cir. 2001), the FMLA states that “‘[i]t shall be unlawful for any employer to interfere with, restrain, or deny the exerci