code: public Observable<IntegrationAccountSchemaInner> getAsync(String resourceGroupName, String integrationAccountName, String schemaName) {
          return getWithServiceResponseAsync(resourceGroupName, integrationAccountName, schemaName).map(new Func1<ServiceResponse<IntegrationAccountSchemaInner>, IntegrationAccountSchemaInner>() {
              @Override
              public IntegrationAccountSchemaInner call(ServiceResponse<IntegrationAccountSchemaInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets an integration account schema.
  
  @param resourceGroupName The resource group name.
  @param integrationAccountName The integration account name.
  @param schemaName The integration account schema name.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the IntegrationAccountSchemaInner object