OptionalapiNCBI API key for higher rate limits
OptionalcacheEnable the in-memory response cache with its default settings
OptionalemailEmail address for NCBI identification
OptionalrateRequests per second allowed by the rate limiter
Defaults to the NCBI limits (3/s without an API key, 10/s with one). Must be a positive number.
OptionaltimeoutRequest timeout in seconds
OptionaltoolTool name for NCBI identification
Configuration options for the PubMed client