ExtensionContext
The context information of the extension.
export class ExtensionContext {
  isValid?: boolean;
  uid?: number;
  providerName?: string;
  extensionName?: string;
}
             Attributes
- isValid
 - Whether the uid in ExtensionContext is valid: 
true: The uid is valid.false: The uid is invalid.
 - uid
 - The user ID. 0 represents a local user, while greater than 0 represents a remote user.
 - providerName
 - The name of the extension provider.
 - extensionName
 - The name of the extension.