@alexa/ask-expressions-spec

# Call Schema ```txt https://amazonalexa.com/ask/2020/12/Call ``` Represents a call to an action or a dialog. | Abstract | Extensible | Status | Identifiable | Custom Properties | Additional Properties | Access Restrictions | Defined In | | :------------------ | :--------- | :------------- | :----------- | :---------------- | :-------------------- | :------------------ | :---------------------------------------------------------- | | Can be instantiated | No | Unknown status | No | Forbidden | Forbidden | none | [Call.json](../../schemas/Call.json "open original schema") | ## Call Type `object` ([Call](call.md)) # Call Properties | Property | Type | Required | Nullable | Defined by | | :------------------------------------ | :------------ | :------- | :------------- | :------------------------------------------------------------------------------------------------------------------------------ | | [kind](#kind) | Not specified | Required | cannot be null | [Call](call-properties-kind.md "https://amazonalexa.com/ask/2020/12/Call#/properties/kind") | | [name](#name) | `string` | Required | cannot be null | [Call](actiondeclaration-properties-qualifiedname.md "https://amazonalexa.com/ask/2020/12/QualifiedName#/properties/name") | | [genericArguments](#genericarguments) | `array` | Optional | cannot be null | [Call](call-properties-genericarguments.md "https://amazonalexa.com/ask/2020/12/GenericArguments#/properties/genericArguments") | | [arguments](#arguments) | Merged | Optional | cannot be null | [Call](call-properties-arguments.md "https://amazonalexa.com/ask/2020/12/Arguments#/properties/arguments") | | [type](#type) | `object` | Optional | cannot be null | [Call](actiondeclaration-properties-typereference.md "https://amazonalexa.com/ask/2020/12/TypeReference#/properties/type") | | [annotations](#annotations) | `array` | Optional | cannot be null | [Call](call-properties-annotations.md "https://amazonalexa.com/ask/2020/12/Call#/properties/annotations") | ## kind The expression's identifier. `kind` * is required * Type: unknown ([kind](call-properties-kind.md)) * cannot be null * defined in: [Call](call-properties-kind.md "https://amazonalexa.com/ask/2020/12/Call#/properties/kind") ### kind Type unknown ([kind](call-properties-kind.md)) ### kind Constraints **constant**: the value of this property must be equal to: ```json "Call" ``` ## name A qualified name `name` * is required * Type: `string` ([QualifiedName](actiondeclaration-properties-qualifiedname.md)) * cannot be null * defined in: [Call](actiondeclaration-properties-qualifiedname.md "https://amazonalexa.com/ask/2020/12/QualifiedName#/properties/name") ### name Type `string` ([QualifiedName](actiondeclaration-properties-qualifiedname.md)) ### name Constraints **maximum length**: the maximum number of characters for this string is: `1024` **pattern**: the string must match the following regular expression:  ```regexp ^[A-Za-z][A-Za-z0-9_]*(\.((_[A-Za-z0-9][A-Za-z0-9_]*)|([A-Za-z][A-Za-z0-9_]*)))*$ ``` [try pattern](https://regexr.com/?expression=%5E%5BA-Za-z%5D%5BA-Za-z0-9_%5D*$%5C.\(\(_%5BA-Za-z0-9%5D%5BA-Za-z0-9_%5D*$%7C$%5BA-Za-z%5D%5BA-Za-z0-9_%5D*$\)\)*%24 "try regular expression with regexr.com") ### name Examples ```json "com.amazon.alexa.schema.String" ``` ```json "foo" ``` ## genericArguments Represents a set of generic arguments (e.g. for an action). `genericArguments` * is optional * Type: `object[]` ([TypeReference](actiondeclaration-properties-typereference.md)) * cannot be null * defined in: [Call](call-properties-genericarguments.md "https://amazonalexa.com/ask/2020/12/GenericArguments#/properties/genericArguments") ### genericArguments Type `object[]` ([TypeReference](actiondeclaration-properties-typereference.md)) ## arguments Arguments to a Call can be JSON primitives or an object/array of Calls, NameReferences or PropertyReferences `arguments` * is optional * Type: merged type ([Arguments](call-properties-arguments.md)) * cannot be null * defined in: [Call](call-properties-arguments.md "https://amazonalexa.com/ask/2020/12/Arguments#/properties/arguments") ### arguments Type merged type ([Arguments](call-properties-arguments.md)) one (and only one) of * [Untitled null in Arguments](arguments-oneof-0.md "check type definition") * [Untitled number in Arguments](arguments-oneof-1.md "check type definition") * [Untitled string in Arguments](arguments-oneof-2.md "check type definition") * [Untitled boolean in Arguments](arguments-oneof-3.md "check type definition") * [Untitled array in Arguments](arguments-oneof-4.md "check type definition") * [Untitled object in Arguments](arguments-oneof-5.md "check type definition") ## type The representation of a reference to a type declaration. `type` * is optional * Type: `object` ([TypeReference](actiondeclaration-properties-typereference.md)) * cannot be null * defined in: [Call](actiondeclaration-properties-typereference.md "https://amazonalexa.com/ask/2020/12/TypeReference#/properties/type") ### type Type `object` ([TypeReference](actiondeclaration-properties-typereference.md)) ## annotations `annotations` * is optional * Type: `object[]` ([Call](actiondeclaration-properties-annotations-call.md)) * cannot be null * defined in: [Call](call-properties-annotations.md "https://amazonalexa.com/ask/2020/12/Call#/properties/annotations") ### annotations Type `object[]` ([Call](actiondeclaration-properties-annotations-call.md))