Appsignal.Span.set_sample_data

You're seeing just the function set_sample_data, go back to Appsignal.Span module for more information.
Link to this function

set_sample_data(span, key, value)

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Specs

set_sample_data(t() | nil, String.t(), map()) :: t() | nil

Sets sample data for an Appsignal.Span.

Example

Appsignal.Tracer.root_span()
|> Appsignal.Span.set_sample_data("environment", %{"method" => "GET"})