default - version of Xcode to set as default
Example: "11.2.1"
versions - the array of versions of Xcode to install
Example: [ "11.3", "11.2.1", "11.2", "11.1", "11" ]

Xamarin

vsmac - version of Visual Studio For Mac to install.
Example: "8.3.11.1"
mono-versions - the array of Mono versions to install.
Example: [ "6.4.0.208", "6.0.0.334" ]
ios-versions - the array of Xamarin iOS versions to install.
Example: [ "13.6.0.12", "13.4.0.2", "13.2.0.47" ]
mac-versions - the array of Xamarin iOS versions to install.
Example: [ "6.6.0.12", "6.4.0.2", "6.2.0.47" ]
android-versions - the array of Xamarin iOS versions to install.
Example: [ "10.0.6.2", "9.4.1.0" ]

Note: More than one version of SDK with the same major.minor version should not be installed. It applies to mono-versions, ios-versions, mac-versions, android-versions fields.
For example, if Mono 6.4.0.100 is installed and Mono 6.4.1.2 was released recently, we should not install both, just update 6.4.0.100 -> 6.4.1.2. Only major and minor version changes can break backward compatibility so it is safe.

bundle-default - the symlink of the bundle that will be set as default on the image.
This bundle will be set as Current.
Example: "5_12_0" (set bundle with symlink 5_12_0 as default)
Example: "latest" (set latest bundle as default)
bundles - the array of objects that describe bundles that will be created on image after sdk installation.
The first bundle in the list will be as Latest.

Each object should contain the following fields:
- symlink - unique id of the bundle (usually looks like "<major_mono_version><minor_mono_version>")
- mono - version of Mono that will be set in this bundle. Only two numbers (major.minor) should be specified.
- ios - version of Xamarin.iOS that will be set in this bundle. Only two numbers (major.minor) should be specified.
- mac - version of Xamarin.Mac that will be set in this bundle. Only two numbers (major.minor) should be specified.
- android - version of Xamarin.Android that will be set in this bundle. Only two numbers (major.minor) should be specified.
  
  Example:

        [
          {
            "symlink": "6_4_2",
            "mono": "6.4",
            "ios": "13.6",
            "mac": "6.6",
            "android": "10.0"
          },
          {
            "symlink": "6_4_1",
            "mono": "6.4",
            "ios": "13.4",
            "mac": "6.4",
            "android": "10.0"
          }
        ]

Android

platform-list - the array of android platforms to install.
Example: [ "android-29", "android-28", "android-27" ]
build-tools - the array of android build tools to install.
Example: [ "29.0.2", "29.0.1", "29.0.0", "28.0.3" ]
extra-list - the array of android extra items to install.
Example: [ "google;google_play_services", "intel;Hardware_Accelerated_Execution_Manager" ]
addon-list - the array of android addons to install.
Example: [ "addon-google_apis-google-24", "addon-google_apis-google-23" ]

Toolset JSON validation

File Toolset.Tests.ps1 contains PowerShell Pester tests that validate JSON toolset files. Type Invoke-Pester in the current folder in PowerShell to run tests.