Using`vars` breaks my `pyjq.first` command with `Assertion failed: (JVP_HAS_KIND(key, JV_KIND_STRING))`

[jonsnowseven]

Hello.

I am having the following issue regarding the use of vars argument.

This does not work:

data = dict(
    parameters= [
        dict(name="PKG_TAG_NAME", value="trunk"),
        dict(name="GIT_COMMIT", value="master"),
        dict(name="TRIGGERED_JOB", value="trunk-buildall")
    ],
    id="2013-12-27_00-09-37",
    changeSet=dict(items=[], kind="git"),
)
import pyjq
print(pyjq.first('$parameters[] | {"param_name": .name, "param_type": .type}', vars=data))

# returns Assertion failed: (JVP_HAS_KIND(key, JV_KIND_STRING)), function jv_object_set, file jv.c, line 1771.

But this works:

data = dict(
    parameters= [
        dict(name="PKG_TAG_NAME", value="trunk"),
        dict(name="GIT_COMMIT", value="master"),
        dict(name="TRIGGERED_JOB", value="trunk-buildall")
    ],
    id="2013-12-27_00-09-37",
    changeSet=dict(items=[], kind="git"),
)
import pyjq
print(pyjq.first('.parameters as $parameters | $parameters[] | {"param_name": .name, "param_type": .type}', data))

# {'param_name': 'PKG_TAG_NAME', 'param_type': None}

Am I assuming something wrong regarding the use of vars?

I am using Python 3.11 and pyjq 2.6.0 in a Macbook M2.

Thank you in advance.