method Functions.prototype.updateVariableRe-exportimport { Functions } from "https://deno.land/x/appwrite@9.1.0/mod.ts"; updateVariable(functionId: string,variableId: string,key: string,value?: string,): Promise<Models.Variable>Update variable Update variable by its unique ID. ParametersfunctionId: stringvariableId: stringkey: stringoptionalvalue: stringReturnsPromise<Models.Variable>