AWS SDK for .NET Documentation
TemplateBody Property
AmazonAmazon.CloudFormation.ModelEstimateTemplateCostRequestTemplateBody Did this page help you?   Yes   No    Tell us about it...
Structure containing the template body. (For more information, go to the AWS CloudFormation User Guide.) Conditional: You must pass TemplateBody or TemplateURL. If both are passed, only TemplateBody is used.

Constraints:

Length
1 - 51200

Declaration Syntax
C#
public string TemplateBody { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.24.0 (1.5.24.0)