def METHOD_NAME(client, resource_group_name, lab_name, name, arm_template, parameters=None,
                       artifact_source_name=None, user_name="@me", tags=None):
    """ Command to create an environment the Azure DevTest Lab """
    from azure.mgmt.devtestlabs.models import EnvironmentDeploymentProperties, DtlEnvironment
    environment_deployment_properties = EnvironmentDeploymentProperties(arm_template_id=arm_template,
                                                                        parameters=parameters)
    dtl_environment = DtlEnvironment(tags=tags,
                                     deployment_properties=environment_deployment_properties)
    return client.create_or_update(resource_group_name, lab_name, user_name, name, dtl_environment)