This module is to be used in wrapper templates to allow those templates to provide default parameter values and allow editors to pass additional parameters to the underlying working template.  When writing a wrapper template, give this module all of the normally required default parameters necessary to use the wrapper template in its base form. Editors then use the wrapper template as-is or may supply additional wrapper and canonical parameters. Any of the canonical parameters supported by the working template may be added to the wrapper template or supplied by editors in article space. When an editor supplies a parameter that has a default value in the wrapper template, the editor-supplied value overrides the default. When it is necessary to remove a default parameter, editors may set the parameter value to the special keyword unset which will cause this wrapper module to erase the wrapper template's default value for that parameter. This module discards empty named parameters.  Positional parameters are not normally passed on to the working template.  Setting  will pass all positional parameters to the working template.  Positional parameters cannot be excluded; positional parameters may be unset.  Parameters that are used only by the wrapper should be either positional () or listed in  (a comma-separated list of named parameters). This module will not pass _excluded parameters to the working template.   ব্যবহার   {{#invoke:|wrap|_template=|_exclude=, , ...|_reuse=, , ...|_alias-map=:|_include-positional=yes|<>|<>|...}}  Control parameters  – (required) the name, without namespace, of the working template (the template that is wrapped); see §_template below  – comma-separated list of parameter names used by the wrapper template that are not to be passed to the working template; see §_exclude below  – comma-separated list of canonical names that have meaning to both the wrapper template and to the working template; see §_reuse below  – comma-separated list of wrapper-template parameter names that are to be treated as aliases of specified working template canonical parameters; see §_alias-map below  – pass all positional parameters to the working template; see §_include-positional below  Definitions canonical parameter – a parameter supported and used by the working template wrapper parameter – a parameter used by the wrapper template; may provide data for canonical parameters or control other aspects of the wrapper template alias parameter – a wrapper parameter that is contextually meaningful to the wrapper template but must be renamed to a canonical parameter for use by the working template reused parameter – a parameter that is shared by both wrapper and working templates and has been modified by wrapper template default parameter – a canonical parameter given a default value in the wrapper template  +parameter processingwrappertemplate  Module:Template wrapper  workingtemplate → –––––––→ → –––––––→ → –––––––→ → –––––––→ → –––––––→ → filterexcluedparameters workingtemplate → –––––––→ → –––––––→ → –––––––→ → –––––––→ → –––––––→ →    → –––––––→ → –––––––→ → –––––––→ → –––––––→ →  →    → –––––––→ → –––––––→ → –––––––→ → –––––––→ →    → convert aliasparameters tocanonicalparameters →  → –––––––→ → –––––––→ →   →      →  → modifyreusedcanonicalparameters → –––––––→ →     →  → –––→ →    → –––––––→ → –––––––→ →  → –––––––→ → –––––––→ → –––––––→ →    → –––––––→ → –––––––→ → –––––––→ → –––––––→ → –––→ →   প্যারামিটার বিবরণ _টেমপ্লেট The only required parameter,  supplies the name, without namespace, of the working template (the template that is wrapped).  If this parameter is omitted, Module:Template wrapper will emit the error message: |_template= missing or empty  _alias-map  takes a comma-separated list of wrapper-template parameters that are to be treated as aliases of specified working template canonical parameters.  Each mapping element of the list has the form: <>:<> – where: <> is a wrapper parameter name and <> is a canonical parameter name In this example, it may be preferable for a wrapper template to use  which may be unknown to the working template but the working template may have an equivalent  so in the {{#invoke:}} we would write:  Positional parameters may also be mapped to canonical parameters:  Enumerated wrapper parameters may be mapped to enumerated canonical parameters using the # enumerator specifier:  Given the above example,  will map to ; also,  and  will map to   Multiple wrapper parameters can map to a single canonical parameter:  Wrapper parameters listed in  are not passed to the working template.  Mapping positional parameters when  may give undesirable results.   and  will cause all other positional parameters to be passed to the working template as is: wrapper template {{{2}}} becomes working template {{{2}}}, etc; working template will not get {{{1}}} though it will get .  _reuse  takes a comma-separated list of canonical parameters that have meaning to both the wrapper template and to the working template  In the simplest cases, a canonical parameter passed into the wrapper template overrides a default parameter provided in the wrapper template.  Sometimes a wrapper parameter is the same as a canonical parameter and the wrapper template needs to modify the parameter value before it is passed to the working template.  In this example,  is both a wrapper parameter and a canonical parameter that the wrapper template needs to modify before passing to the working template.  To do this we first write:  then, in the wrapper template's {{#invoke:Template wapper|wrap|_template=...|...}} we write:  _reused parameters cannot be overridden.  _exclude  takes a comma-separated list of parameters used by the wrapper template that are not to be passed to the working template.  This list applies to all wrapper and canonical parameters (including those canonical parameters that are renamed alias parameters) received from the wrapper template.  As an example, a wrapper template might use  to supply a portion of the value assigned to default parameter  so we would write:  then, in the wrapper template's {{#invoke:Template wapper|wrap|_template=...|...}} we write:  The modified  value is passed on to working template but  and its value is not.  _reused and default parameters cannot be excluded.  _include-positional  is a boolean parameter that takes only one value: yes; the default (empty, missing) is no (positional parameters normally excluded).  When set to yes, Module:Template wrapper will pass all positional parameters to the working template.  See also §_alias-map.  Overriding default parameters Editors may override default parameters by simply setting the default parameter to the desired value in the wrapper template.  This module ignores empty parameters (those parameters that are named but which do not have an assigned value).  When it is desirable to override a default parameter to no value, use the special keyword unset.  Default parameters with this value are passed to the working template as empty (no assigned value) parameters.  _reused parameters cannot be unset or overridden.  Debugging aid This module has two entry points.  A wrapper template might use a module {{#invoke:}} written like this: {{#invoke:|{{#if:{{{_debug|}}}|list|wrap}}|_template=<>|_exclude=_debug, ...|...}} where the  wrapper parameter, set to any value, will cause the module to render the call to the working template without actually calling the working template.  As an example,  is a wrapper template that uses  as its working template.   accepts positional parameters but  does not so the wrapper template must convert the positional parameters to named parameters which it does using the  parameter: {{#invoke:template wrapper|{{#if:{{{_debug|}}}|list|wrap}}|_template=citation/new   |_exclude=..., _debug <!-- unnecessary detail omitted -->   |_alias-map=1:title, 2:author, 3:language This example uses positional parameters and sets  to show that the  template is correctly formed: {{cite wikisource/sandbox|Sentido y sensibilidad|Jane Austen|es|_debug=yes}}  and, with  unset: {{cite wikisource/sandbox|Sentido y sensibilidad|Jane Austen|es|_debug=}}  The  name is chosen here for convenience but may be anything so long as it matches the {{#if:}} in the {{#invoke:}}.