[GENERAL] Does a view not define a composite type?

[Guyren Howe]

I have a view: “reporting_helpers.customers_by_state_ranked"

I try to define a function with this signature:

CREATE OR REPLACE FUNCTION reporting.formatted_cust_by_state_bold(c 
"reporting_helpers.customers_by_state_ranked")
    RETURNS "reporting_helpers.customers_by_state_ranked"

I am told “ERROR:  type reporting_helpers.customers_by_state_ranked does not 
exist”

I am confused.