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Sample Package.xml:

<?xml version="1.0" encoding="UTF-8"?>
<Package xmlns="http://soap.sforce.com/2006/04/metadata">
    <!-- Custom Object Tab, Web Tab and Visualforce tab -->
    <types>
        <members>Employee__c</members>
        <name>CustomTab</name>
    </types>
    <types>

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public class CaseTriggerHandler{
    
    @future(callout=true)
    public static void checkSentiments( String caseId ){
        EinsteinAPI  ea = new EinsteinAPI();
        Double positive;
        Double negative;
        Double neutral;
        String result;
        SentimentAnalysisResponse sar = new SentimentAnalysisResponse();

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public class SampleDatatable{
    
    /**
    * On basis of field set, Create Dynamic SOQL
    */
    public List<Opportunity> getOpportunity() {
        List<Schema.FieldSetMember> fsm = SObjectType.Opportunity.FieldSets.Opportunity_Field_Set.getFields();
        String query = 'SELECT ';
        for(Schema.FieldSetMember f : fsm ) {
            query += f.getFieldPath() + ', ';

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<a href="/{!opp.id}" id="lookup{!opp.id}popup" onblur="LookupHoverDetail.getHover('lookup{!opp.id}popup').hide();"
onfocus="LookupHoverDetail.getHover('lookup{!opp.id}popup', '/{!opp.id}/m?retURL=/{!opp.id}&isAjaxRequest=1').show();"
onmouseout="LookupHoverDetail.getHover('lookup{!opp.id}popup').hide();"
onmouseover="LookupHoverDetail.getHover('lookup{!opp.id}popup', '/{!opp.id}/m?retURL=/{!opp.id}&isAjaxRequest=1').show();">
{!opp.Name}
</a>

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public class ProbabilityController{
    public Opportunity thisOpp { get; set; }
    
    public ProbabilityController(){
        thisOpp = new Opportunity();
    }
    // Method the the Probability
    // Called when the Stage Picklist is changed
    public PageReference getProbability() {
        

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public class GenerateJSON{
    
    // Method to generate the JSONBody for the List of accounts
    public void GenerateJSONBody(List<Account> accList){
        // Instantiate the JSONGenerator class to access the method
        JSONGenerator gen = JSON.createGenerator(true);
        gen.writeStartObject();             // Writes the starting marker of JSON object - {
        gen.writeFieldName('request');      // Writes the fieldName 
        gen.writeStartObject();             // Writes the starting marker of JSON object - {
        gen.writeFieldName('customer');     

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public class ShortenURL{
    
    // Wrapper class for the Shorten URL JSON Response
    public class ShortenURLWrapper {
        public String kind;
        public String id;
        public String longUrl;
    }
    
    // Method to build the JSON Request and do callout

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<apex:page standardController="Account" extensions="OpportunityRelatedListClass" sidebar="false" showHeader="false">
    <apex:pageblock id="pb">   
          <apex:pageBlockSection collapsible="false" columns="1">
             <apex:pageBlockTable value="{!Opportunities}" var="opp" styleClass="dataTable"> 
                 <apex:column title="Edit">
                     <apex:outputLink style="color:#015ba7" value="{!URLFOR($Action.Opportunity.Edit, opp.Id, ['retURL'='/%2F'+ opp.AccountId])}" target="_top">Edit</apex:outputLink>
                 </apex:column>
                 <apex:column >
                     <apex:facet name="header">Opportunity Name</apex:facet>
                     <apex:outputLink value="/{!opp.Id}" target="_top">{!opp.Name}</apex:outputLink>