math.gl has lookAt but not found targetTo

[FreeGIS]

in gl_matrix: /**

• Generates a matrix that makes something look at something else.
• @param {mat4} out mat4 frustum matrix will be written into
• @param {ReadonlyVec3} eye Position of the viewer
• @param {ReadonlyVec3} center Point the viewer is looking at
• @param {ReadonlyVec3} up vec3 pointing up
• @returns {mat4} out */

function targetTo(out, eye, target, up)

but in math.gl only has a lookAt.I found the 'lookAt' is different from 'targetTo'