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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def resolve_schema(schema):
 """Transform JSON schemas "allOf". This is the default schema resolver. This function was created because some javascript JSON Schema libraries don't support "allOf". We recommend to use this function only in this specific case. This function is transforming the JSON Schema by removing "allOf" keywords. It recursively merges the sub-schemas as dictionaries. The process is completely custom and works only for simple JSON Schemas which use basic dependencies" or "oneOf" keywords are not supported. :param dict schema: the schema to resolve. :returns: the resolved schema .. note:: The schema should have the ``$ref`` already resolved before running this method. """

    def traverse(schema):
        if isinstance(schema, dict):
            if 'allOf' in schema:
                for x in schema['allOf']:
                    sub_schema = x
                    sub_schema.pop('title', None)
                    schema = _merge_dicts(schema, sub_schema)
                schema.pop('allOf')
                schema = traverse(schema)
            elif 'properties' in schema:
                for x in schema.get('properties', []):
                    schema['properties'][x] = traverse(
                        schema['properties'][x])
            elif 'items' in schema:
                schema['items'] = traverse(schema['items'])
        return schema
    return traverse(schema)