The Solana RPC endpoint URL.
Optionaloptions: {Optional RPC configuration
OptionalpollIntervalMs?: numberMilliseconds between confirmation status checks. Set to 0 for continuous polling (default).
OptionalresendOnPoll?: booleanWhether to resend the transaction on each poll attempt (default: true).
OptionalsupportsPriorityFeePercentile?: booleanWhether the RPC supports percentile-based priority fees. Set this to true if the RPC provider is Triton.
A Promise that resolves to an RPC instance configured for the specified endpoint.
Initializes the global RPC configuration and returns an RPC instance.