def addIncludeSchema(self, schemaLocation, schema):
if not isinstance(schema, XMLSchema):<EOL><INDENT>raise TypeError('<STR_LIT>')<EOL><DEDENT>if not schema.targetNamespace orschema.targetNamespace == self.targetNamespace:<EOL><INDENT>self._included_schemas[schemaLocation] = schema<EOL><DEDENT>else:<EOL><INDENT>raise SchemaError('<STR_LIT>')<EOL><DEDENT>
for resolving include statements in Schema instance
           schemaLocation -- schema location
           schema -- schema instance
           _included_schemas