fetch/fetch.go
func (p ContinueRequestParams) WithHeaders(headers []*HeaderEntry) *ContinueRequestParams {
	p.Headers = headers
	return &p
}
func (p ContinueRequestParams) WithHeaders(headers []*HeaderEntry) *ContinueRequestParams {
	p.Headers = headers
	return &p
}
// WithHeaders if set, overrides the request headrts.