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tools: add pubmed tool #1044

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tools: add pubmed tool #1044

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longkeyy
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@longkeyy longkeyy commented Oct 4, 2024

PR Checklist

  • [Y] Read the Contributing documentation.
  • [Y] Read the Code of conduct documentation.
  • [Y] Name your Pull Request title clearly, concisely, and prefixed with the name of the primarily affected package you changed according to Good commit messages (such as memory: add interfaces for X, Y or util: add whizzbang helpers).
  • [Y] Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
  • [Y] Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. Fixes #123).
  • [Y] Describes the source of new concepts.
  • [Y] References existing implementations as appropriate.
  • [Y] Contains test coverage for new functions.
  • [Y] Passes all golangci-lint checks.

Fixes #1043

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// DefaultUserAgent defines a default value for user-agent header.
const DefaultUserAgent = "github.com/tmc/langchaingo/tools/pubmed"
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It think it would be better if this isn't exported and was set by the new function if the userAgent string is empty.


// New initializes a new PubMed Search tool with arguments for setting a
// max results per search query and a value for the user agent header.
func New(maxResults int, userAgent string) (*Tool, error) {
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What do you think about having functions options here instead? Then we could have a default for maxResults and the ability to pass callbacks.Handler in the New function.

"github.com/tmc/langchaingo/tools/pubmed/internal"
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func TestNew(t *testing.T) {
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Does these test need to be mocked? It seems like the tests test the internal client. Maybe we can put this file in the internal package.

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tools: add PubMed
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