Update base directory name for beta sdk

Author: samwelkanda

.azure-pipelines/generation-pipeline.yml

@@ -770,11 +770,11 @@ stages:
         repoName: 'msgraph-beta-sdk-python'
         branchName: $(betaBranch)
         targetClassName: "BaseGraphServiceClient"
-        targetNamespace: "msgraph.generated"
+        targetNamespace: "msgraph_beta.generated"
         customArguments: "-b -e '/me' -e '/me/**'" # Enable backing store, Exclude me
         cleanMetadataFolder: $(cleanOpenAPIFolderBeta)
         languageSpecificSteps:
-        - template: generation-templates/python.yml
+        - template: generation-templates/python-beta.yml
           parameters:
             repoName: msgraph-beta-sdk-python
 

.azure-pipelines/generation-templates/python-beta.yml

@@ -0,0 +1,17 @@
+parameters:
+  - name: repoName
+    type: string
+
+steps:
+- pwsh: '$(scriptsDirectory)/clean-python-files.ps1'
+  displayName: 'Remove generated models and requests from the repo generated folder'
+  env:
+    RepoModelsDir: '$(Build.SourcesDirectory)/${{ parameters.repoName }}/msgraph_beta/generated'
+
+- pwsh: '$(scriptsDirectory)/copy-python-models.ps1'
+  displayName: 'Update models'
+  env:
+    BuildConfiguration: $(buildConfiguration)
+    OutputFullPath: $(kiotaDirectory)/output/*
+    RepoModelsDir: '$(Build.SourcesDirectory)/${{ parameters.repoName }}/msgraph_beta/generated'
+