What is the proper way to utilize the type map[string]interface {} in Golang?

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The map[string]interface{} type in Go is a flexible way to store values with string keys, where each value can be of any type. The proper way to utilize this type involves the following steps:

1. Declare and initialize the map:

   m := make(map[string]interface{})
   

2. Add or update values to the map:

   m["key1"] = "value1"
   m["key2"] = 2
   m["key3"] = false
   

3. Retrieve values from the map using type assertion:

   val1, ok := m["key1"].(string)
   if !ok {
       // handle type assertion error
   }
   
   val2, ok := m["key2"].(int)
   if !ok {
       // handle type assertion error
   }
   
   val3, ok := m["key3"].(bool)
   if !ok {
       // handle type assertion error
   }
   

4. Iterate over the map:

   for k, v := range m {
       // do something with k and v
   }
   

By utilizing these steps, you can utilize the map[string]interface{} type in Go to store and retrieve values with flexible key-value pairs.