'Uses the stack parser to check the validity of a template.
:param ctxt: RPC context.
:param template: Template of stack you want to create.
:param params: Stack Input Params/Environment
:param files: files referenced from the environment/template.
:param environment_files: ordered list of environment file names
included in the files dict
:param show_nested: if True nested templates will be validated
:param ignorable_errors: List of error_code to be ignored as part of
validation'

def validate_template(self, ctxt, template, params=None, files=None, environment_files=None, show_nested=False, ignorable_errors=None):

    return self.call(ctxt, self.make_msg('validate_template', template=template, params=params, files=files, show_nested=show_nested, environment_files=environment_files, ignorable_errors=ignorable_errors), version='1.24')
