struct InvalidOperand

    extension InvalidOperand : Equatable, Sendable, SendableMetatype

The expression uses an invalid operand.
- `


  ### [operator](https://developers.home.google.com/reference/swift/GoogleHomeSDK/Structs/InvalidOperand#/s:13GoogleHomeSDK14InvalidOperandV8operatorSSvp)


  ` Undocumented

  #### Declaration

  Swift

      let `operator`: String

- `


  ### [operandIndex](https://developers.home.google.com/reference/swift/GoogleHomeSDK/Structs/InvalidOperand#/s:13GoogleHomeSDK14InvalidOperandV12operandIndexs6UInt32Vvp)


  ` The index of the operand in the expression.

  #### Declaration

  Swift

      let operandIndex: UInt32

- `


  ### [operandType](https://developers.home.google.com/reference/swift/GoogleHomeSDK/Structs/InvalidOperand#/s:13GoogleHomeSDK14InvalidOperandV11operandTypeSSvp)


  ` The operand type.

  #### Declaration

  Swift

      let operandType: String

- `


  ### [expression](https://developers.home.google.com/reference/swift/GoogleHomeSDK/Structs/InvalidOperand#/s:13GoogleHomeSDK14InvalidOperandV10expressionAA22IdentifiableExpression_pSgvp)


  ` The associated expression. Set null if the expression is not found.

  #### Declaration

  Swift

      let expression: (any https://developers.home.google.com/reference/swift/GoogleHomeSDK/Protocols/IdentifiableExpression.html)?

- `


  ### [validOperandTypes](https://developers.home.google.com/reference/swift/GoogleHomeSDK/Structs/InvalidOperand#/s:13GoogleHomeSDK14InvalidOperandV05validE5TypesSaySSGvp)


  ` A list of valid operand types.

  #### Declaration

  Swift

      let validOperandTypes: [String]

- `


  ### [==(_:_:)](https://developers.home.google.com/reference/swift/GoogleHomeSDK/Structs/InvalidOperand#/s:13GoogleHomeSDK14InvalidOperandV2eeoiySbAC_ACtFZ)


  ` Returns a Boolean value indicating whether two values are equal.

  Equality is the inverse of inequality. For any values `a` and `b`,
  `a == b` implies that `a != b` is `false`.

  #### Declaration

  Swift

      static func == (lhs: InvalidOperand, rhs: InvalidOperand) -> Bool

  #### Parameters

  |---|---|
  | ` lhs ` | A value to compare. |
  | ` rhs ` | Another value to compare. |