render#

langchain_core.utils.mustache.render(template: str | list[tuple[str, str]] = '', data: Mapping[str, Any] = mappingproxy({}), partials_dict: Mapping[str, str] = mappingproxy({}), padding: str = '', def_ldel: str = '{{', def_rdel: str = '}}', scopes: list[Literal[False, 0] | Mapping[str, Any]] | None = None, warn: bool = False, keep: bool = False) โ†’ str[source]#

Render a mustache template.

Renders a mustache template with a data scope and inline partial capability.

Parameters:
  • template (str | list[tuple[str, str]]) โ€“ A file-like object or a string containing the template.

  • data (Mapping[str, Any]) โ€“ A python dictionary with your data scope.

  • partials_path โ€“ The path to where your partials are stored. If set to None, then partials wonโ€™t be loaded from the file system (defaults to โ€˜.โ€™).

  • partials_ext โ€“ The extension that you want the parser to look for (defaults to โ€˜mustacheโ€™).

  • partials_dict (Mapping[str, str]) โ€“ A python dictionary which will be search for partials before the filesystem is. {โ€˜includeโ€™: โ€˜fooโ€™} is the same as a file called include.mustache (defaults to {}).

  • padding (str) โ€“ This is for padding partials, and shouldnโ€™t be used (but can be if you really want to).

  • def_ldel (str) โ€“ The default left delimiter (โ€œ{{โ€ by default, as in spec compliant mustache).

  • def_rdel (str) โ€“ The default right delimiter (โ€œ}}โ€ by default, as in spec compliant mustache).

  • scopes (list[Literal[False, 0] | ~collections.abc.Mapping[str, ~typing.Any]] | None) โ€“ The list of scopes that get_key will look through.

  • warn (bool) โ€“ Log a warning when a template substitution isnโ€™t found in the data

  • keep (bool) โ€“ Keep unreplaced tags when a substitution isnโ€™t found in the data.

Returns:

A string containing the rendered template.

Return type:

str