wip

pkg/yqlib/doc/Keys.md

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+
+## Get Keys
+Given a sample.yml file of:
+```yaml
+a:
+  b: cat
+  c: dog
+  d: frog
+```
+then
+```bash
+yq eval '.a | keys' sample.yml
+```
+will output
+```yaml
+3
+```
+
+## Set key style
+Given a sample.yml file of:
+```yaml
+a:
+  b: cat
+  c: dog
+  d: frog
+```
+then
+```bash
+yq eval '(.a | keys) style = 'single'' sample.yml
+```
+will output
+```yaml
+a:
+  b: cat
+  c: dog
+  d: frog
+```
+