When running a MaterializeResult, do I specify the return value?

When you use

MaterializeResult

in Dagster, it is a class that can be optionally returned from an

@asset

to report metadata, code version, and other information about the asset. The

MaterializeResult

can include a

value

field that you specify as the return value. This is useful when you want to pass scalar values to access in downstream assets. Here's an example from the documentation that illustrates how you might use

MaterializeResult

with a `value`:

python @asset  def table_1():     full_table_name = "my_schema.table_1"     snowflake.query(f"CREATE TABLE {full_table_name} ...")     return MaterializeResult(value=full_table_name)

In this example,

table_1

is an asset that creates a table in Snowflake and returns a

MaterializeResult

with the

value

set to the full table name. This value can then be accessed by downstream assets that depend on

table_1

. Please note that the ability to store scalar values in

MaterializeResult

and how to access them in downstream assets is a feature that has been discussed and may be subject to change. Always refer to the latest Dagster documentation for the most up-to-date usage patterns.