functionName

The name or ARN of the Lambda function. Name formats

• Function name – `MyFunction`.

• Function ARN – `arn:aws:lambda:us-west-2:123456789012:function:MyFunction`.

• Version or Alias ARN – `arn:aws:lambda:us-west-2:123456789012:function:MyFunction:PROD`.

• Partial ARN – `123456789012:function:MyFunction`. The length constraint applies only to the full ARN. If you specify only the function name, it's limited to 64 characters in length.