There is a command group 'az_devcenter_admin_project environment type'. This group of commands could 'manage project environment types'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_devcenter_admin_project environment type_create'.The syntax is: az devcenter admin project-environment-type create --deployment-target-id
                                                   --environment-type-name
                                                   --identity-type {none, systemassigned, systemassigned, userassigned, userassigned}
                                                   --project
                                                   --resource-group
                                                   --roles
                                                   --status {disabled, enabled}
                                                   [--display-name]
                                                   [--location]
                                                   [--tags]
                                                   [--user-assigned-identities]
                                                   [--user-role-assignments]. The 1th example of the child command would be to use it to 'create', the syntax is: az devcenter admin project-environment-type create --identity-type "UserAssigned" --user-assigned-identities "{\"/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/identityGroup/providers/Microsoft.ManagedIdentity/userAssignedIdentities/testidentity1\":{}}" --roles "{\"4cbf0b6c-e750-441c-98a7-10da8387e4d6\":{}}" --deployment-target-id "/subscriptions/00000000-0000-0000-0000-000000000000" --status "Enabled" --user-role-assignments "{\"e45e3m7c-176e-416a-b466-0c5ec8298f8a\":{\"roles\":{\"4cbf0b6c-e750-441c-98a7-10da8387e4d6\":{}}}}" --tags CostCenter="RnD" --environment-type-name "DevTest" --project-name "ContosoProj" --resource-group "rg1". The parameter '--deployment-target-id' is required. It is used to id of a subscription that the environment type will be mapped to. the environment's resources will be deployed into this subscription.. The parameter '--environment-type-name --name -n' is required. It is used to the name of the environment type.. The parameter '--identity-type' is required. It is used to type of managed service identity (where both systemassigned and userassigned types are allowed).. The parameter '--project --project-name' is required. It is used to the name of the project. use `az configure -d project=<project_name>` to configure a default.. The parameter '--resource-group -g' is required. It is used to name of resource group. you can configure the default group using `az configure --defaults group=<name>`.. The parameter '--roles' is required. It is used to a map of roles to assign to the environment creator.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--status' is required. It is used to defines whether this environment type can be used in this project.. The parameter '--display-name' is optional. the display name of the project environment type.. The parameter '--location -l' is optional. the geo-location where the resource lives. values from: `az account list-locations`. you can configure the default location using `az configure --defaults location=<location>`.. The parameter '--tags' is optional. resource tags.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--user-assigned-identities -u' is optional. the set of user assigned identities associated with the resource. the userassignedidentities dictionary keys will be arm resource ids in the form: '/subscriptions/{subscriptionid}/resourcegroups/{resourcegroupname}/providers/microsoft.managedidentity/userassignedidentities/{identityname}. the dictionary values can be empty objects ({}) in requests.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--user-role-assignments' is optional. role assignments created on environment backing resources. this is a mapping from a user object id to an object of role definition ids.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. 