Package org.openapitools.client.api

Class TaskVariableApi

  • public class TaskVariableApi
extends Object

    • Constructor Detail

      • TaskVariableApi

        public TaskVariableApi()

      • TaskVariableApi

        public TaskVariableApi​(ApiClient apiClient)

    • Method Detail

      • getApiClient

        public ApiClient getApiClient()

      • setApiClient

        public void setApiClient​(ApiClient apiClient)

      • deleteTaskVariableCall

        public okhttp3.Call deleteTaskVariableCall​(String id,
                                           String varName,
                                           ApiCallback _callback)
                                    throws ApiException
        Build call for deleteTaskVariable
        Parameters:
        id - The id of the task to delete the variable from. (required)
        varName - The name of the variable to be removed. (required)
        _callback - Callback for upload/download progress
        Returns:
        Call to execute
        Throws:
        ApiException - If fail to serialize the request body object

      • deleteTaskVariable

        public void deleteTaskVariable​(String id,
                               String varName)
                        throws ApiException
        Delete Task Variable Removes a variable that is visible to a task. A variable is visible to a task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to delete the variable from. (required)
        varName - The name of the variable to be removed. (required)
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • deleteTaskVariableWithHttpInfo

        public ApiResponse<Void> deleteTaskVariableWithHttpInfo​(String id,
                                                        String varName)
                                                 throws ApiException
        Delete Task Variable Removes a variable that is visible to a task. A variable is visible to a task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to delete the variable from. (required)
        varName - The name of the variable to be removed. (required)
        Returns:
        ApiResponse<Void>
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • deleteTaskVariableAsync

        public okhttp3.Call deleteTaskVariableAsync​(String id,
                                            String varName,
                                            ApiCallback<Void> _callback)
                                     throws ApiException
        Delete Task Variable (asynchronously) Removes a variable that is visible to a task. A variable is visible to a task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to delete the variable from. (required)
        varName - The name of the variable to be removed. (required)
        _callback - The callback to be executed when the API call finishes
        Returns:
        The request call
        Throws:
        ApiException - If fail to process the API call, e.g. serializing the request body object

      • getTaskVariableCall

        public okhttp3.Call getTaskVariableCall​(String id,
                                        String varName,
                                        Boolean deserializeValue,
                                        ApiCallback _callback)
                                 throws ApiException
        Build call for getTaskVariable
        Parameters:
        id - The id of the task to retrieve the variable from. (required)
        varName - The name of the variable to get. (required)
        deserializeValue - Determines whether serializable variable values (typically variables that store custom Java objects) should be deserialized on the server side (default `true`). If set to `true`, a serializable variable will be deserialized on server side and transformed to JSON using [Jackson's](https://github.com/FasterXML/jackson) POJO/bean property introspection feature. Note that this requires the Java classes of the variable value to be on the REST API's classpath. If set to `false`, a serializable variable will be returned in its serialized format. For example, a variable that is serialized as XML will be returned as a JSON string containing XML. Note: While `true` is the default value for reasons of backward compatibility, we recommend setting this parameter to `false` when developing web applications that are independent of the Java process applications deployed to the engine. (optional, default to true)
        _callback - Callback for upload/download progress
        Returns:
        Call to execute
        Throws:
        ApiException - If fail to serialize the request body object

      • getTaskVariable

        public VariableValueDto getTaskVariable​(String id,
                                        String varName,
                                        Boolean deserializeValue)
                                 throws ApiException
        Get Task Variable Retrieves a variable from the context of a given task. The variable must be visible from the task. It is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable from. (required)
        varName - The name of the variable to get. (required)
        deserializeValue - Determines whether serializable variable values (typically variables that store custom Java objects) should be deserialized on the server side (default `true`). If set to `true`, a serializable variable will be deserialized on server side and transformed to JSON using [Jackson's](https://github.com/FasterXML/jackson) POJO/bean property introspection feature. Note that this requires the Java classes of the variable value to be on the REST API's classpath. If set to `false`, a serializable variable will be returned in its serialized format. For example, a variable that is serialized as XML will be returned as a JSON string containing XML. Note: While `true` is the default value for reasons of backward compatibility, we recommend setting this parameter to `false` when developing web applications that are independent of the Java process applications deployed to the engine. (optional, default to true)
        Returns:
        VariableValueDto
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • getTaskVariableWithHttpInfo

        public ApiResponse<VariableValueDto> getTaskVariableWithHttpInfo​(String id,
                                                                 String varName,
                                                                 Boolean deserializeValue)
                                                          throws ApiException
        Get Task Variable Retrieves a variable from the context of a given task. The variable must be visible from the task. It is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable from. (required)
        varName - The name of the variable to get. (required)
        deserializeValue - Determines whether serializable variable values (typically variables that store custom Java objects) should be deserialized on the server side (default `true`). If set to `true`, a serializable variable will be deserialized on server side and transformed to JSON using [Jackson's](https://github.com/FasterXML/jackson) POJO/bean property introspection feature. Note that this requires the Java classes of the variable value to be on the REST API's classpath. If set to `false`, a serializable variable will be returned in its serialized format. For example, a variable that is serialized as XML will be returned as a JSON string containing XML. Note: While `true` is the default value for reasons of backward compatibility, we recommend setting this parameter to `false` when developing web applications that are independent of the Java process applications deployed to the engine. (optional, default to true)
        Returns:
        ApiResponse<VariableValueDto>
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • getTaskVariableAsync

        public okhttp3.Call getTaskVariableAsync​(String id,
                                         String varName,
                                         Boolean deserializeValue,
                                         ApiCallback<VariableValueDto> _callback)
                                  throws ApiException
        Get Task Variable (asynchronously) Retrieves a variable from the context of a given task. The variable must be visible from the task. It is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable from. (required)
        varName - The name of the variable to get. (required)
        deserializeValue - Determines whether serializable variable values (typically variables that store custom Java objects) should be deserialized on the server side (default `true`). If set to `true`, a serializable variable will be deserialized on server side and transformed to JSON using [Jackson's](https://github.com/FasterXML/jackson) POJO/bean property introspection feature. Note that this requires the Java classes of the variable value to be on the REST API's classpath. If set to `false`, a serializable variable will be returned in its serialized format. For example, a variable that is serialized as XML will be returned as a JSON string containing XML. Note: While `true` is the default value for reasons of backward compatibility, we recommend setting this parameter to `false` when developing web applications that are independent of the Java process applications deployed to the engine. (optional, default to true)
        _callback - The callback to be executed when the API call finishes
        Returns:
        The request call
        Throws:
        ApiException - If fail to process the API call, e.g. serializing the request body object

      • getTaskVariableBinaryCall

        public okhttp3.Call getTaskVariableBinaryCall​(String id,
                                              String varName,
                                              ApiCallback _callback)
                                       throws ApiException
        Build call for getTaskVariableBinary
        Parameters:
        id - The id of the task to retrieve the variable for. (required)
        varName - The name of the variable to retrieve. (required)
        _callback - Callback for upload/download progress
        Returns:
        Call to execute
        Throws:
        ApiException - If fail to serialize the request body object

      • getTaskVariableBinary

        public File getTaskVariableBinary​(String id,
                                  String varName)
                           throws ApiException
        Get Task Variable (Binary) Retrieves a binary variable from the context of a given task. Applicable for byte array and file variables. The variable must be visible from the task. It is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable for. (required)
        varName - The name of the variable to retrieve. (required)
        Returns:
        File
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • getTaskVariableBinaryWithHttpInfo

        public ApiResponse<File> getTaskVariableBinaryWithHttpInfo​(String id,
                                                           String varName)
                                                    throws ApiException
        Get Task Variable (Binary) Retrieves a binary variable from the context of a given task. Applicable for byte array and file variables. The variable must be visible from the task. It is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable for. (required)
        varName - The name of the variable to retrieve. (required)
        Returns:
        ApiResponse<File>
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • getTaskVariableBinaryAsync

        public okhttp3.Call getTaskVariableBinaryAsync​(String id,
                                               String varName,
                                               ApiCallback<File> _callback)
                                        throws ApiException
        Get Task Variable (Binary) (asynchronously) Retrieves a binary variable from the context of a given task. Applicable for byte array and file variables. The variable must be visible from the task. It is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable for. (required)
        varName - The name of the variable to retrieve. (required)
        _callback - The callback to be executed when the API call finishes
        Returns:
        The request call
        Throws:
        ApiException - If fail to process the API call, e.g. serializing the request body object

      • getTaskVariablesCall

        public okhttp3.Call getTaskVariablesCall​(String id,
                                         Boolean deserializeValues,
                                         ApiCallback _callback)
                                  throws ApiException
        Build call for getTaskVariables
        Parameters:
        id - The id of the task to retrieve the variables from. (required)
        deserializeValues - Determines whether serializable variable values (typically variables that store custom Java objects) should be deserialized on the server side (default `true`). If set to `true`, a serializable variable will be deserialized on server side and transformed to JSON using [Jackson's](https://github.com/FasterXML/jackson) POJO/bean property introspection feature. Note that this requires the Java classes of the variable value to be on the REST API's classpath. If set to `false`, a serializable variable will be returned in its serialized format. For example, a variable that is serialized as XML will be returned as a JSON string containing XML. Note: While `true` is the default value for reasons of backward compatibility, we recommend setting this parameter to `false` when developing web applications that are independent of the Java process applications deployed to the engine. (optional, default to true)
        _callback - Callback for upload/download progress
        Returns:
        Call to execute
        Throws:
        ApiException - If fail to serialize the request body object

      • getTaskVariables

        public Map<String,​VariableValueDto> getTaskVariables​(String id,
                                                           Boolean deserializeValues)
                                                    throws ApiException
        Get Task Variables Retrieves all variables visible from the task. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variables from. (required)
        deserializeValues - Determines whether serializable variable values (typically variables that store custom Java objects) should be deserialized on the server side (default `true`). If set to `true`, a serializable variable will be deserialized on server side and transformed to JSON using [Jackson's](https://github.com/FasterXML/jackson) POJO/bean property introspection feature. Note that this requires the Java classes of the variable value to be on the REST API's classpath. If set to `false`, a serializable variable will be returned in its serialized format. For example, a variable that is serialized as XML will be returned as a JSON string containing XML. Note: While `true` is the default value for reasons of backward compatibility, we recommend setting this parameter to `false` when developing web applications that are independent of the Java process applications deployed to the engine. (optional, default to true)
        Returns:
        Map<String, VariableValueDto>
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • getTaskVariablesWithHttpInfo

        public ApiResponse<Map<String,​VariableValueDto>> getTaskVariablesWithHttpInfo​(String id,
                                                                                    Boolean deserializeValues)
                                                                             throws ApiException
        Get Task Variables Retrieves all variables visible from the task. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variables from. (required)
        deserializeValues - Determines whether serializable variable values (typically variables that store custom Java objects) should be deserialized on the server side (default `true`). If set to `true`, a serializable variable will be deserialized on server side and transformed to JSON using [Jackson's](https://github.com/FasterXML/jackson) POJO/bean property introspection feature. Note that this requires the Java classes of the variable value to be on the REST API's classpath. If set to `false`, a serializable variable will be returned in its serialized format. For example, a variable that is serialized as XML will be returned as a JSON string containing XML. Note: While `true` is the default value for reasons of backward compatibility, we recommend setting this parameter to `false` when developing web applications that are independent of the Java process applications deployed to the engine. (optional, default to true)
        Returns:
        ApiResponse<Map<String, VariableValueDto>>
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • getTaskVariablesAsync

        public okhttp3.Call getTaskVariablesAsync​(String id,
                                          Boolean deserializeValues,
                                          ApiCallback<Map<String,​VariableValueDto>> _callback)
                                   throws ApiException
        Get Task Variables (asynchronously) Retrieves all variables visible from the task. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variables from. (required)
        deserializeValues - Determines whether serializable variable values (typically variables that store custom Java objects) should be deserialized on the server side (default `true`). If set to `true`, a serializable variable will be deserialized on server side and transformed to JSON using [Jackson's](https://github.com/FasterXML/jackson) POJO/bean property introspection feature. Note that this requires the Java classes of the variable value to be on the REST API's classpath. If set to `false`, a serializable variable will be returned in its serialized format. For example, a variable that is serialized as XML will be returned as a JSON string containing XML. Note: While `true` is the default value for reasons of backward compatibility, we recommend setting this parameter to `false` when developing web applications that are independent of the Java process applications deployed to the engine. (optional, default to true)
        _callback - The callback to be executed when the API call finishes
        Returns:
        The request call
        Throws:
        ApiException - If fail to process the API call, e.g. serializing the request body object

      • modifyTaskVariablesCall

        public okhttp3.Call modifyTaskVariablesCall​(String id,
                                            PatchVariablesDto patchVariablesDto,
                                            ApiCallback _callback)
                                     throws ApiException
        Build call for modifyTaskVariables
        Parameters:
        id - The id of the task to set variables for. (required)
        patchVariablesDto - (optional)
        _callback - Callback for upload/download progress
        Returns:
        Call to execute
        Throws:
        ApiException - If fail to serialize the request body object

      • modifyTaskVariables

        public void modifyTaskVariables​(String id,
                                PatchVariablesDto patchVariablesDto)
                         throws ApiException
        Update/Delete Task Variables Updates or deletes the variables visible from the task. Updates precede deletions. So, if a variable is updated AND deleted, the deletion overrides the update. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to set variables for. (required)
        patchVariablesDto - (optional)
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • modifyTaskVariablesWithHttpInfo

        public ApiResponse<Void> modifyTaskVariablesWithHttpInfo​(String id,
                                                         PatchVariablesDto patchVariablesDto)
                                                  throws ApiException
        Update/Delete Task Variables Updates or deletes the variables visible from the task. Updates precede deletions. So, if a variable is updated AND deleted, the deletion overrides the update. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to set variables for. (required)
        patchVariablesDto - (optional)
        Returns:
        ApiResponse<Void>
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • modifyTaskVariablesAsync

        public okhttp3.Call modifyTaskVariablesAsync​(String id,
                                             PatchVariablesDto patchVariablesDto,
                                             ApiCallback<Void> _callback)
                                      throws ApiException
        Update/Delete Task Variables (asynchronously) Updates or deletes the variables visible from the task. Updates precede deletions. So, if a variable is updated AND deleted, the deletion overrides the update. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to set variables for. (required)
        patchVariablesDto - (optional)
        _callback - The callback to be executed when the API call finishes
        Returns:
        The request call
        Throws:
        ApiException - If fail to process the API call, e.g. serializing the request body object

      • putTaskVariableCall

        public okhttp3.Call putTaskVariableCall​(String id,
                                        String varName,
                                        VariableValueDto variableValueDto,
                                        ApiCallback _callback)
                                 throws ApiException
        Build call for putTaskVariable
        Parameters:
        id - The id of the task to set the variable for. (required)
        varName - The name of the variable to set. (required)
        variableValueDto - (optional)
        _callback - Callback for upload/download progress
        Returns:
        Call to execute
        Throws:
        ApiException - If fail to serialize the request body object

      • putTaskVariable

        public void putTaskVariable​(String id,
                            String varName,
                            VariableValueDto variableValueDto)
                     throws ApiException
        Update Task Variable Updates a process variable that is visible from the Task scope. A variable is visible from the task if it is a local task variable, or declared in a parent scope of the task. See the documentation on [variable scopes and visibility](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables#variable-scopes-and-variable-visibility). **Note**: If a variable doesn't exist, the variable is created in the top-most scope visible from the task.
        Parameters:
        id - The id of the task to set the variable for. (required)
        varName - The name of the variable to set. (required)
        variableValueDto - (optional)
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • putTaskVariableWithHttpInfo

        public ApiResponse<Void> putTaskVariableWithHttpInfo​(String id,
                                                     String varName,
                                                     VariableValueDto variableValueDto)
                                              throws ApiException
        Update Task Variable Updates a process variable that is visible from the Task scope. A variable is visible from the task if it is a local task variable, or declared in a parent scope of the task. See the documentation on [variable scopes and visibility](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables#variable-scopes-and-variable-visibility). **Note**: If a variable doesn't exist, the variable is created in the top-most scope visible from the task.
        Parameters:
        id - The id of the task to set the variable for. (required)
        varName - The name of the variable to set. (required)
        variableValueDto - (optional)
        Returns:
        ApiResponse<Void>
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • putTaskVariableAsync

        public okhttp3.Call putTaskVariableAsync​(String id,
                                         String varName,
                                         VariableValueDto variableValueDto,
                                         ApiCallback<Void> _callback)
                                  throws ApiException
        Update Task Variable (asynchronously) Updates a process variable that is visible from the Task scope. A variable is visible from the task if it is a local task variable, or declared in a parent scope of the task. See the documentation on [variable scopes and visibility](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables#variable-scopes-and-variable-visibility). **Note**: If a variable doesn't exist, the variable is created in the top-most scope visible from the task.
        Parameters:
        id - The id of the task to set the variable for. (required)
        varName - The name of the variable to set. (required)
        variableValueDto - (optional)
        _callback - The callback to be executed when the API call finishes
        Returns:
        The request call
        Throws:
        ApiException - If fail to process the API call, e.g. serializing the request body object

      • setBinaryTaskVariableCall

        public okhttp3.Call setBinaryTaskVariableCall​(String id,
                                              String varName,
                                              File data,
                                              String valueType,
                                              ApiCallback _callback)
                                       throws ApiException
        Build call for setBinaryTaskVariable
        Parameters:
        id - The id of the task to retrieve the variable for. (required)
        varName - The name of the variable to retrieve. (required)
        data - The binary data to be set. For File variables, this multipart can contain the filename, binary value and MIME type of the file variable to be set Only the filename is mandatory. (optional)
        valueType - The name of the variable type. Either Bytes for a byte array variable or File for a file variable. (optional)
        _callback - Callback for upload/download progress
        Returns:
        Call to execute
        Throws:
        ApiException - If fail to serialize the request body object

      • setBinaryTaskVariable

        public void setBinaryTaskVariable​(String id,
                                  String varName,
                                  File data,
                                  String valueType)
                           throws ApiException
        Update Task Variable (Binary) Sets the serialized value for a binary variable or the binary value for a file variable visible from the task. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable for. (required)
        varName - The name of the variable to retrieve. (required)
        data - The binary data to be set. For File variables, this multipart can contain the filename, binary value and MIME type of the file variable to be set Only the filename is mandatory. (optional)
        valueType - The name of the variable type. Either Bytes for a byte array variable or File for a file variable. (optional)
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • setBinaryTaskVariableWithHttpInfo

        public ApiResponse<Void> setBinaryTaskVariableWithHttpInfo​(String id,
                                                           String varName,
                                                           File data,
                                                           String valueType)
                                                    throws ApiException
        Update Task Variable (Binary) Sets the serialized value for a binary variable or the binary value for a file variable visible from the task. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable for. (required)
        varName - The name of the variable to retrieve. (required)
        data - The binary data to be set. For File variables, this multipart can contain the filename, binary value and MIME type of the file variable to be set Only the filename is mandatory. (optional)
        valueType - The name of the variable type. Either Bytes for a byte array variable or File for a file variable. (optional)
        Returns:
        ApiResponse<Void>
        Throws:
        ApiException - If fail to call the API, e.g. server error or cannot deserialize the response body

      • setBinaryTaskVariableAsync

        public okhttp3.Call setBinaryTaskVariableAsync​(String id,
                                               String varName,
                                               File data,
                                               String valueType,
                                               ApiCallback<Void> _callback)
                                        throws ApiException
        Update Task Variable (Binary) (asynchronously) Sets the serialized value for a binary variable or the binary value for a file variable visible from the task. A variable is visible from the task if it is a local task variable or declared in a parent scope of the task. See documentation on [visiblity of variables](https://docs.camunda.org/manual/7.18/user-guide/process-engine/variables/).
        Parameters:
        id - The id of the task to retrieve the variable for. (required)
        varName - The name of the variable to retrieve. (required)
        data - The binary data to be set. For File variables, this multipart can contain the filename, binary value and MIME type of the file variable to be set Only the filename is mandatory. (optional)
        valueType - The name of the variable type. Either Bytes for a byte array variable or File for a file variable. (optional)
        _callback - The callback to be executed when the API call finishes
        Returns:
        The request call
        Throws:
        ApiException - If fail to process the API call, e.g. serializing the request body object