TargetGroupName: [required] The name of the target group to modify.
DBProxyName: [required] The name of the proxy.
ConnectionPoolConfig: The settings that determine the size and behavior of the connection pool for the target group.
NewName: The new name for the modified DBProxyTarget. An identifier must begin with a letter and must contain only ASCII letters, digits, and hyphens; it can't end with a hyphen or contain two consecutive hyphens.