diff --git a/README.md b/README.md
index 01c7b0d..8594eb4 100644
--- a/README.md
+++ b/README.md
@@ -29,10 +29,6 @@ For any terraform command
                 if a value is None, will skip this option
         :return: ret_code, out, err
 
-For apply/destroy method, the flag options, like, `-no-color` or `-force`
-have been implemented as boolean argument. simply use `is_no_color=True/False` for
-apply/destroy method
-
 
 ## Examples
 ### Have a test.tf file under folder "/home/test"
@@ -46,7 +42,7 @@ In python-terraform:
 
     from python_terraform import Terraform
     tf = terraform(working_dir='/home/test')
-    tf.apply(is_no_color=True, refresh=False, var={'a':'b', 'c':'d'})
+    tf.apply(no_color=IsFlagged, refresh=False, var={'a':'b', 'c':'d'})
 #### taint command, allow-missing and no color
 In shell:
 
diff --git a/python_terraform/__init__.py b/python_terraform/__init__.py
index 9c7dfb1..63ef189 100644
--- a/python_terraform/__init__.py
+++ b/python_terraform/__init__.py
@@ -53,57 +53,40 @@ class Terraform:
         # store the tfstate data
         self.tfstate = dict()
 
-    def apply(self,
-              dir=None,
-              is_no_color=True,
-              is_input=False,
-              **kwargs):
+    def apply(self, dir_or_plan=None, **kwargs):
         """
         refer to https://terraform.io/docs/commands/apply.html
-        :raise RuntimeError when return code is not zero
-        :param is_no_color: if True, add flag -no-color
-        :param is_input: if True, add option -input=true
-        :param dir: folder relative to working folder
+        no-color is flagged by default
+        :param dir_or_plan: folder relative to working folder
         :param kwargs: same as kwags in method 'cmd'
         :returns return_code, stdout, stderr
         """
-
-        args, option_dict = self._create_cmd_args(is_input,
-                                                  is_no_color,
-                                                  dir,
-                                                  kwargs)
+        default = dict()
+        args, option_dict = self._create_cmd_args(dir_or_plan, default, kwargs)
 
         return self.cmd('apply', *args, **option_dict)
 
-    def _create_cmd_args(self, is_input, is_no_color, dir, kwargs):
-        option_dict = dict()
+    def _create_cmd_args(self, dir_or_plan, default_dict, kwargs):
+        option_dict = default_dict
         option_dict['state'] = self.state
         option_dict['target'] = self.targets
         option_dict['var'] = self.variables
         option_dict['var_file'] = self.var_file
         option_dict['parallelism'] = self.parallelism
-        if is_no_color:
-            option_dict['no_color'] = IsFlagged
-        option_dict['input'] = is_input
+        option_dict['no_color'] = IsFlagged
+        option_dict['input'] = True
         option_dict.update(kwargs)
-        args = [dir] if dir else []
+        args = [dir_or_plan] if dir_or_plan else []
         return args, option_dict
 
-    def destroy(self, working_dir=None, is_force=True,
-                is_no_color=True, is_input=False, **kwargs):
+    def destroy(self, dir_or_plan=None, **kwargs):
         """
         refer to https://www.terraform.io/docs/commands/destroy.html
-        :raise RuntimeError when return code is not zero
+        force/no-color option is flagged by default
         :return: ret_code, stdout, stderr
         """
-
-        args, option_dict = self._create_cmd_args(is_input,
-                                                  is_no_color,
-                                                  working_dir,
-                                                  kwargs)
-        if is_force:
-            option_dict['force'] = IsFlagged
-
+        default = {'force': IsFlagged}
+        args, option_dict = self._create_cmd_args(dir_or_plan, default, kwargs)
         return self.cmd('destroy', *args, **option_dict)
 
     def generate_cmd_string(self, cmd, *args, **kwargs):