how to extract my appsync resolver from my sam template - amazon-web-services

Question

I'm implementing substacks in my AWS serverless app, I would like to know if there is a way to extract the from my template of appsync resolvers the content that is in the field RequestMappingTemplate, and my ResponseMappingTemplate
currently the resolver resource looks like this
AppSyncResolver:
Type: "AWS::AppSync::Resolver"
Properties:
TypeName: "Query"
FieldName: "my_resolver"
DataSourceName: !GetAtt AppSyncDataSource.Name
RequestMappingTemplate: |
#set($SCHEMA = $ctx.args.schema)
#set($limit = $ctx.args.limit)
#set($table = ".customers")
#set($customers = $SCHEMA$table_ordendscto_lote)
{
"version": "2018-05-29",
"statements": [
"SELECT * FROM $customers LIMIT $limit ;"
]
}
ResponseMappingTemplate: |
## Raise a GraphQL field error in case of a datasource invocation error
#if($ctx.error)
$utils.error($ctx.error.message, $ctx.error.type)
#end
$utils.toJson($utils.rds.toJsonObject($ctx.result)[0])
Kind: "UNIT"
ApiId: !GetAtt AppSyncGraphQLApi.ApiId
and I wanted something like this
AppSyncResolver:
Type: "AWS::AppSync::Resolver"
Properties:
TypeName: "Query"
FieldName: "my_resolver"
DataSourceName: !GetAtt AppSyncDataSource.Name
RequestMappingTemplate: src/resolvers/my-resolver
ResponseMappingTemplate: src/resolvers/my-resolver-response
Kind: "UNIT"
ApiId: !GetAtt AppSyncGraphQLApi.ApiId
is it possible?