How do I check if a messages user has a specific role?

        let channel = client.channels.cache.get(DISCORD_COLLABS_CHANNEL);
        let messages = await channel.messages.fetch({limit: 100, cache: false});
        console.log (' here is the first message', Array.from(messages)[0]);
        let lastPostByAdmin = Array.from(messages).filter(m=>m[1].member.roles.cache.has(DISCORD_ADMIN_ROLE));

        let channel = client.channels.cache.get(DISCORD_COLLABS_CHANNEL);
        let messages = await channel.messages.fetch({limit: 100, cache: false});
        console.log (' here is the first message', Array.from(messages)[0]);
        let lastPostByAdmin = Array.from(messages).filter(m=>m[1].member.roles.cache.has(DISCORD_ADMIN_ROLE));