[Parameter(Position = 0, Mandatory = true, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, HelpMessage = "A value expression that is \"between\" v2 and v3.")]
public ValueExp V1 { get; set; }
[Parameter(Position = 1, Mandatory = true, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, HelpMessage = "Value expression that represents a boundary of the constraint.")]
public ValueExp V2 { get; set; }
[Parameter(Position = 2, Mandatory = true, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, HelpMessage = "Value expression that represents a boundary of the constraint.")]
public ValueExp V3 { get; set; }