mergeHeaders method

Map<String, String> mergeHeaders(
  1. Map<String, String>? h1,
  2. Map<String, String>? h2, [
  3. Map<String, String>? h3
])

Implementation

Map<String, String> mergeHeaders(
        Map<String, String>? h1, Map<String, String>? h2,
        [Map<String, String>? h3]) =>
    {...?h1, ...?h2, ...?h3};