func WithMetadataHeaders(h map[string]string) Option {
	return func(options *options) {
		options.metadataHeaders = h
	}
}
// WithMetadataHeaders sets the headers on the option.
WithMetadataHeaders sets the headers on the option.
// WithMetadataHeaders sets the headers on the option .
func WithMetadataHeaders(h map[string]string) Option {
	return func(options *options) {
		options.metadataHeaders = h
	}
}
func WithMetadataHeaders ( h map [ string ] string ) Option { return func ( options * options ) { options . metadataHeaders = h } }
WithMetadataHeaders sets the headers on the option.
WithMetadataHeaders sets the headers on the option .