code: func (e *EnvironmentLoader) generateFieldName(prefix string, name string) string {
  	fieldName := strings.ToUpper(name)
  	if e.CamelCase {
  		fieldName = strings.ToUpper(strings.Join(camelcase.Split(name), "_"))
  	}
  
  	return strings.ToUpper(prefix) + "_" + fieldName
  }
docs: // generateFieldName generates the field name combined with the prefix and the
  // struct's field name