message: Template Specs: Including "expand" parameter, TemplateSpecVersionInfo model for getting basic version info with template spec(s).
diff: {
  "$ref": "#/parameters/TemplateSpecNameParameter"
  },
  + {
  + "$ref": "#/parameters/TemplateSpecExpandParameter"
  + },
  {
  "$ref": "#/parameters/ApiVersionParameter"
  }
  {
  "$ref": "#/parameters/SubscriptionIdParameter"
  },
  + {
  + "$ref": "#/parameters/TemplateSpecExpandParameter"
  + },
  {
  "$ref": "#/parameters/ApiVersionParameter"
  }
  {
  "$ref": "#/parameters/ResourceGroupNameParameter"
  },
  + {
  + "$ref": "#/parameters/TemplateSpecExpandParameter"
  + },
  {
  "$ref": "#/parameters/ApiVersionParameter"
  }
  "type": "string",
  "maxLength": 64,
  "description": "Template Spec display name."
  + },
  + "versions": {
  + "type": "object",
  + "readOnly": true,
  + "description": "High-level information about the versions within this Template Spec. The keys are the version names. Only populated if the $expand query parameter is set to 'versions'.",
  + "additionalProperties": {
  + "$ref": "#/definitions/TemplateSpecVersionInfo"
  + }
  }
  }
  },
  }
  ]
  },
  + "TemplateSpecVersionInfo": {
  + "type": "object",
  + "description": "High-level information about a Template Spec version.",
  + "properties": {
  + "description": {
  + "type": "string",
  + "readOnly": true,
  + "description": "Template Spec version description."
  + },
  + "timeCreated": {
  + "type": "string",
  + "readOnly": true,
  + "format": "date-time",
  + "description": "The timestamp of when the version was created."
  + },
  + "timeModified": {
  + "type": "string",
  + "readOnly": true,
  + "format": "date-time",
  + "description": "The timestamp of when the version was last modified."
  + }
  + }
  + },
  "TemplateSpecsError": {
  "properties": {
  "error": {
  "maxLength": 90,
  "x-ms-parameter-location": "method"
  },
  + "TemplateSpecExpandParameter": {
  + "name": "$expand",
  + "in": "query",
  + "required": false,
  + "type": "string",
  + "description": "Allows for expansion of additional Template Spec details in the response. Optional.",
  + "x-ms-parameter-location": "method",
  + "enum": [
  + "versions"
  + ],
  + "x-ms-enum": {
  + "name": "TemplateSpecExpandKind",
  + "modelAsString": true,
  + "values": [
  + {
  + "value": "versions",
  + "description": "Includes version information with the Template Spec."
  + }
  + ]
  + }
  + },
  "ApiVersionParameter": {
  "name": "api-version",
  "in": "query",
  