Save the suite to disk.

        Args:
            path (str): Path to save the suite to. If a suite is already saved
                at `path`, then it will be overwritten. Otherwise, if `path`
                exists, an error is raised.

def save(self, path, verbose=False):
        """Save the suite to disk.

        Args:
            path (str): Path to save the suite to. If a suite is already saved
                at `path`, then it will be overwritten. Otherwise, if `path`
                exists, an error is raised.
        """
        path = os.path.realpath(path)
        if os.path.exists(path):
            if self.load_path and self.load_path == path:
                if verbose:
                    print "saving over previous suite..."
                for context_name in self.context_names:
                    self.context(context_name)  # load before dir deleted
                shutil.rmtree(path)
            else:
                raise SuiteError("Cannot save, path exists: %r" % path)

        contexts_path = os.path.join(path, "contexts")
        os.makedirs(contexts_path)

        # write suite data
        data = self.to_dict()
        filepath = os.path.join(path, "suite.yaml")
        with open(filepath, "w") as f:
            f.write(dump_yaml(data))

        # write contexts
        for context_name in self.context_names:
            context = self.context(context_name)
            context._set_parent_suite(path, context_name)
            filepath = self._context_path(context_name, path)
            if verbose:
                print "writing %r..." % filepath
            context.save(filepath)

        # create alias wrappers
        tools_path = os.path.join(path, "bin")
        os.makedirs(tools_path)
        if verbose:
            print "creating alias wrappers in %r..." % tools_path

        tools = self.get_tools()
        for tool_alias, d in tools.iteritems():
            tool_name = d["tool_name"]
            context_name = d["context_name"]

            data = self._context(context_name)
            prefix_char = data.get("prefix_char")

            if verbose:
                print ("creating %r -> %r (%s context)..."
                       % (tool_alias, tool_name, context_name))
            filepath = os.path.join(tools_path, tool_alias)

            create_forwarding_script(filepath,
                                     module="suite",
                                     func_name="_FWD__invoke_suite_tool_alias",
                                     context_name=context_name,
                                     tool_name=tool_name,
                                     prefix_char=prefix_char)