Import Upstream version 2.72.4
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gio/giomodule.h
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193
gio/giomodule.h
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/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#ifndef __G_IO_MODULE_H__
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#define __G_IO_MODULE_H__
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#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
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#error "Only <gio/gio.h> can be included directly."
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#endif
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#include <gio/giotypes.h>
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#include <gmodule.h>
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G_BEGIN_DECLS
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typedef struct _GIOModuleScope GIOModuleScope;
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GLIB_AVAILABLE_IN_2_30
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GIOModuleScope * g_io_module_scope_new (GIOModuleScopeFlags flags);
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GLIB_AVAILABLE_IN_2_30
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void g_io_module_scope_free (GIOModuleScope *scope);
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GLIB_AVAILABLE_IN_2_30
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void g_io_module_scope_block (GIOModuleScope *scope,
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const gchar *basename);
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#define G_IO_TYPE_MODULE (g_io_module_get_type ())
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#define G_IO_MODULE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_IO_TYPE_MODULE, GIOModule))
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#define G_IO_MODULE_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_IO_TYPE_MODULE, GIOModuleClass))
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#define G_IO_IS_MODULE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_IO_TYPE_MODULE))
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#define G_IO_IS_MODULE_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_IO_TYPE_MODULE))
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#define G_IO_MODULE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_IO_TYPE_MODULE, GIOModuleClass))
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/**
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* GIOModule:
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*
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* Opaque module base class for extending GIO.
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**/
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typedef struct _GIOModuleClass GIOModuleClass;
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GLIB_AVAILABLE_IN_ALL
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GType g_io_module_get_type (void) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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GIOModule *g_io_module_new (const gchar *filename);
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GLIB_AVAILABLE_IN_ALL
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void g_io_modules_scan_all_in_directory (const char *dirname);
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GLIB_AVAILABLE_IN_ALL
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GList *g_io_modules_load_all_in_directory (const gchar *dirname);
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GLIB_AVAILABLE_IN_2_30
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void g_io_modules_scan_all_in_directory_with_scope (const gchar *dirname,
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GIOModuleScope *scope);
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GLIB_AVAILABLE_IN_2_30
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GList *g_io_modules_load_all_in_directory_with_scope (const gchar *dirname,
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GIOModuleScope *scope);
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GLIB_AVAILABLE_IN_ALL
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GIOExtensionPoint *g_io_extension_point_register (const char *name);
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GLIB_AVAILABLE_IN_ALL
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GIOExtensionPoint *g_io_extension_point_lookup (const char *name);
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GLIB_AVAILABLE_IN_ALL
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void g_io_extension_point_set_required_type (GIOExtensionPoint *extension_point,
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GType type);
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GLIB_AVAILABLE_IN_ALL
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GType g_io_extension_point_get_required_type (GIOExtensionPoint *extension_point);
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GLIB_AVAILABLE_IN_ALL
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GList *g_io_extension_point_get_extensions (GIOExtensionPoint *extension_point);
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GLIB_AVAILABLE_IN_ALL
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GIOExtension * g_io_extension_point_get_extension_by_name (GIOExtensionPoint *extension_point,
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const char *name);
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GLIB_AVAILABLE_IN_ALL
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GIOExtension * g_io_extension_point_implement (const char *extension_point_name,
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GType type,
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const char *extension_name,
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gint priority);
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GLIB_AVAILABLE_IN_ALL
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GType g_io_extension_get_type (GIOExtension *extension);
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GLIB_AVAILABLE_IN_ALL
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const char * g_io_extension_get_name (GIOExtension *extension);
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GLIB_AVAILABLE_IN_ALL
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gint g_io_extension_get_priority (GIOExtension *extension);
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GLIB_AVAILABLE_IN_ALL
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GTypeClass* g_io_extension_ref_class (GIOExtension *extension);
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/* API for the modules to implement */
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/**
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* g_io_module_load: (skip)
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* @module: a #GIOModule.
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*
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* Required API for GIO modules to implement.
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*
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* This function is run after the module has been loaded into GIO,
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* to initialize the module. Typically, this function will call
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* g_io_extension_point_implement().
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*
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* Since 2.56, this function should be named `g_io_<modulename>_load`, where
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* `modulename` is the plugin’s filename with the `lib` or `libgio` prefix and
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* everything after the first dot removed, and with `-` replaced with `_`
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* throughout. For example, `libgiognutls-helper.so` becomes `gnutls_helper`.
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* Using the new symbol names avoids name clashes when building modules
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* statically. The old symbol names continue to be supported, but cannot be used
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* for static builds.
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**/
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GLIB_AVAILABLE_IN_ALL
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void g_io_module_load (GIOModule *module);
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/**
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* g_io_module_unload: (skip)
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* @module: a #GIOModule.
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*
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* Required API for GIO modules to implement.
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*
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* This function is run when the module is being unloaded from GIO,
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* to finalize the module.
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*
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* Since 2.56, this function should be named `g_io_<modulename>_unload`, where
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* `modulename` is the plugin’s filename with the `lib` or `libgio` prefix and
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* everything after the first dot removed, and with `-` replaced with `_`
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* throughout. For example, `libgiognutls-helper.so` becomes `gnutls_helper`.
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* Using the new symbol names avoids name clashes when building modules
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* statically. The old symbol names continue to be supported, but cannot be used
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* for static builds.
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**/
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GLIB_AVAILABLE_IN_ALL
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void g_io_module_unload (GIOModule *module);
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/**
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* g_io_module_query:
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*
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* Optional API for GIO modules to implement.
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*
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* Should return a list of all the extension points that may be
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* implemented in this module.
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*
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* This method will not be called in normal use, however it may be
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* called when probing existing modules and recording which extension
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* points that this model is used for. This means we won't have to
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* load and initialize this module unless its needed.
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*
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* If this function is not implemented by the module the module will
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* always be loaded, initialized and then unloaded on application
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* startup so that it can register its extension points during init.
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*
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* Note that a module need not actually implement all the extension
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* points that g_io_module_query() returns, since the exact list of
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* extension may depend on runtime issues. However all extension
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* points actually implemented must be returned by g_io_module_query()
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* (if defined).
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*
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* When installing a module that implements g_io_module_query() you must
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* run gio-querymodules in order to build the cache files required for
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* lazy loading.
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*
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* Since 2.56, this function should be named `g_io_<modulename>_query`, where
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* `modulename` is the plugin’s filename with the `lib` or `libgio` prefix and
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* everything after the first dot removed, and with `-` replaced with `_`
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* throughout. For example, `libgiognutls-helper.so` becomes `gnutls_helper`.
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* Using the new symbol names avoids name clashes when building modules
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* statically. The old symbol names continue to be supported, but cannot be used
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* for static builds.
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*
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* Returns: (transfer full): A %NULL-terminated array of strings,
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* listing the supported extension points of the module. The array
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* must be suitable for freeing with g_strfreev().
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*
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* Since: 2.24
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**/
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GLIB_AVAILABLE_IN_ALL
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char **g_io_module_query (void);
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G_END_DECLS
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#endif /* __G_IO_MODULE_H__ */
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