Function fpml_read_all 

pub(crate) fn fpml_read_all(
    py: Python<'_>,
    text: &str,
    party: Option<String>,
    counterparties: Option<Vec<PyRef<'_, PyCounterparty>>>,
    credit: Option<HashMap<String, String>>,
) -> PyResult<Vec<PyObject>>

Reads every trade of an FpML 5 confirmation document, in document order, as party (a party’s id attribute or any of its partyId values; the first party where omitted). counterparties is the master each trade’s CSA is resolved from; credit maps a reference entity’s identifier or name to its identity spelled ENTITY/SENIORITY/DOCCLAUSE/CCY.

Returns one entry per trade: the read FpmlTrade, or the ValueError its refusal raises, not raised. A document that cannot be read at all, or a party matching no party or several, raises ValueError.