Imports gopkg.in/chanxuehong/wechat.v2/internal/debug/api gopkg.in/chanxuehong/wechat.v2/internal/debug/api/retry gopkg.in/chanxuehong/wechat.v2/mp/core gopkg.in/chanxuehong/wechat.v2/util Standard library imports fmt io mime net/http net/url os path/filepath