{
  "typeName": "AWS::Lambda::Function",
  "description": "The AWS::Lambda::Function resource creates a Lambda function.",
  "properties": {
    "FunctionName": {
      "type": "string",
      "description": "The name of the Lambda function.",
      "minLength": 1,
      "maxLength": 64
    },
    "Arn": {
      "type": "string",
      "description": "The ARN of the function."
    },
    "Runtime": {
      "type": "string",
      "description": "The identifier of the function's runtime.",
      "enum": ["nodejs20.x", "nodejs18.x", "python3.12", "python3.11", "java21", "java17"]
    },
    "Handler": {
      "type": "string",
      "description": "The name of the method within your code that Lambda calls to run your function.",
      "maxLength": 128,
      "pattern": "^[^\\s]+$"
    },
    "Code": {
      "$ref": "#/definitions/Code",
      "description": "The code for the function."
    },
    "Role": {
      "type": "string",
      "description": "The ARN of the function's execution role.",
      "pattern": "^arn:(aws[a-zA-Z-]*)?:iam::\\d{12}:role/?[a-zA-Z_0-9+=,.@\\-_/]+$"
    },
    "MemorySize": {
      "type": "integer",
      "description": "The amount of memory available to the function at runtime.",
      "minimum": 128,
      "maximum": 10240
    }
  },
  "definitions": {
    "Code": {
      "type": "object",
      "description": "The deployment package for a Lambda function.",
      "properties": {
        "S3Bucket": {
          "type": "string",
          "description": "An Amazon S3 bucket in the same AWS Region as your function.",
          "minLength": 3,
          "maxLength": 63
        },
        "S3Key": {
          "type": "string",
          "description": "The Amazon S3 key of the deployment package.",
          "minLength": 1,
          "maxLength": 1024
        },
        "S3ObjectVersion": {
          "type": "string",
          "description": "For versioned objects, the version of the deployment package."
        },
        "ZipFile": {
          "type": "string",
          "description": "The source code of your Lambda function (Node.js and Python)."
        }
      }
    },
    "Tag": {
      "type": "object",
      "description": "A key-value pair to associate with a resource.",
      "properties": {
        "Key": {
          "type": "string",
          "minLength": 1,
          "maxLength": 128
        },
        "Value": {
          "type": "string",
          "maxLength": 256
        }
      },
      "required": ["Key", "Value"]
    }
  },
  "required": ["Code", "Role"],
  "readOnlyProperties": ["/properties/Arn"],
  "primaryIdentifier": ["/properties/FunctionName"],
  "additionalProperties": false
}